42931695578029 has 4 divisors (see below), whose sum is σ = 42932879055484. Its totient is φ = 42930512100576.

The previous prime is 42931695578003. The next prime is 42931695578047. The reversal of 42931695578029 is 92087559613924.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19048877708004 + 23882817870025 = 4364502^2 + 4887005^2 .

It is a cyclic number.

It is not a de Polignac number, because 42931695578029 - 2⁴⁵ = 7747323489197 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 (42931695578069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 591684312 + ... + 591756865.

It is an arithmetic number, because the mean of its divisors is an integer number (10733219763871).

It is a 1-persistent number, because it is pandigital, but 2⋅42931695578029 = 85863391156058 is not.

Almost surely, 2^{42931695578029} is an apocalyptic number.

It is an amenable number.

42931695578029 is a deficient number, since it is larger than the sum of its proper divisors (1183477455).

42931695578029 is a wasteful number, since it uses less digits than its factorization.

42931695578029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183477454.

The product of its (nonzero) digits is 293932800, while the sum is 70.

The spelling of 42931695578029 in words is "forty-two trillion, nine hundred thirty-one billion, six hundred ninety-five million, five hundred seventy-eight thousand, twenty-nine".