74806492487638 has 8 divisors (see below), whose sum is σ = 112213696971600. Its totient is φ = 37401926830440.

The previous prime is 74806492487627. The next prime is 74806492487729. The reversal of 74806492487638 is 83678429460847.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×74806492487638² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659635818 + ... + 659749213.

It is an arithmetic number, because the mean of its divisors is an integer number (14026712121450).

Almost surely, 2^{74806492487638} is an apocalyptic number.

74806492487638 is a deficient number, since it is larger than the sum of its proper divisors (37407204483962).

74806492487638 is a wasteful number, since it uses less digits than its factorization.

74806492487638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319413382.

The product of its (nonzero) digits is 3121348608, while the sum is 76.

The spelling of 74806492487638 in words is "seventy-four trillion, eight hundred six billion, four hundred ninety-two million, four hundred eighty-seven thousand, six hundred thirty-eight".