42070123651577 has 6 divisors (see below), whose sum is σ = 48938715268218. Its totient is φ = 36060105987024.

The previous prime is 42070123651559. The next prime is 42070123651583. The reversal of 42070123651577 is 77515632107024.

42070123651577 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34358483515321 + 7711640136256 = 5861611^2 + 2776984^2 .

It is not a de Polignac number, because 42070123651577 - 2⁶ = 42070123651513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42070123651277) 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, 429286975988 + ... + 429286976085.

It is an arithmetic number, because the mean of its divisors is an integer number (8156452544703).

Almost surely, 2^{42070123651577} is an apocalyptic number.

It is an amenable number.

42070123651577 is a deficient number, since it is larger than the sum of its proper divisors (6868591616641).

42070123651577 is an equidigital number, since it uses as much as digits as its factorization.

42070123651577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858573952087 (or 858573952080 counting only the distinct ones).

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 42070123651577 in words is "forty-two trillion, seventy billion, one hundred twenty-three million, six hundred fifty-one thousand, five hundred seventy-seven".