71894626040 has 32 divisors (see below), whose sum is σ = 164177286480. Its totient is φ = 28328627712.

The previous prime is 71894626039. The next prime is 71894626049. The reversal of 71894626040 is 4062649817.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71894626049) 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 7 ways as a sum of consecutive naturals, for example, 13410497 + ... + 13415856.

Almost surely, 2^71894626040 is an apocalyptic number.

It is an amenable number.

71894626040 is an abundant number, since it is smaller than the sum of its proper divisors (92282660440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71894626040 is a wasteful number, since it uses less digits than its factorization.

71894626040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26826431 (or 26826427 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 71894626040 in words is "seventy-one billion, eight hundred ninety-four million, six hundred twenty-six thousand, forty".