42496678972834 has 4 divisors (see below), whose sum is σ = 63745018459254. Its totient is φ = 21248339486416.

The previous prime is 42496678972789. The next prime is 42496678972841. The reversal of 42496678972834 is 43827987669424.

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

It can be written as a sum of positive squares in only one way, i.e., 41864820911809 + 631858061025 = 6470303^2 + 794895^2 .

It is a super-2 number, since 2×42496678972834² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10624169743207 + ... + 10624169743210.

Almost surely, 2^{42496678972834} is an apocalyptic number.

42496678972834 is a deficient number, since it is larger than the sum of its proper divisors (21248339486420).

42496678972834 is a wasteful number, since it uses less digits than its factorization.

42496678972834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21248339486419.

The product of its digits is 7023034368, while the sum is 79.

The spelling of 42496678972834 in words is "forty-two trillion, four hundred ninety-six billion, six hundred seventy-eight million, nine hundred seventy-two thousand, eight hundred thirty-four".