42621702901389 has 6 divisors (see below), whose sum is σ = 61564681968686. Its totient is φ = 28414468600920.

The previous prime is 42621702901381. The next prime is 42621702901397. The reversal of 42621702901389 is 98310920712624.

42621702901389 is a `hidden beast` number, since 4 + 2 + 6 + 2 + 170 + 2 + 90 + 1 + 389 = 666.

42621702901389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42621702901381) and next prime (42621702901397).

It can be written as a sum of positive squares in only one way, i.e., 41055312983364 + 1566389918025 = 6407442^2 + 1251555^2 .

It is not a de Polignac number, because 42621702901389 - 2³ = 42621702901381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42621702901381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2367872383402 + ... + 2367872383419.

Almost surely, 2^{42621702901389} is an apocalyptic number.

It is an amenable number.

42621702901389 is a deficient number, since it is larger than the sum of its proper divisors (18942979067297).

42621702901389 is a wasteful number, since it uses less digits than its factorization.

42621702901389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4735744766827 (or 4735744766824 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 42621702901389 in words is "forty-two trillion, six hundred twenty-one billion, seven hundred two million, nine hundred one thousand, three hundred eighty-nine".