42746253706421 has 16 divisors (see below), whose sum is σ = 43806577171968. Its totient is φ = 41698372201200.

The previous prime is 42746253706411. The next prime is 42746253706439. The reversal of 42746253706421 is 12460735264724.

It is a cyclic number.

It is not a de Polignac number, because 42746253706421 - 2⁶ = 42746253706357 is a prime.

It is a super-2 number, since 2×42746253706421² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42746253706411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 535553606 + ... + 535633416.

It is an arithmetic number, because the mean of its divisors is an integer number (2737911073248).

Almost surely, 2^{42746253706421} is an apocalyptic number.

It is an amenable number.

42746253706421 is a deficient number, since it is larger than the sum of its proper divisors (1060323465547).

42746253706421 is a wasteful number, since it uses less digits than its factorization.

42746253706421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157592.

The product of its (nonzero) digits is 13547520, while the sum is 53.

The spelling of 42746253706421 in words is "forty-two trillion, seven hundred forty-six billion, two hundred fifty-three million, seven hundred six thousand, four hundred twenty-one".