74006972865 has 288 divisors, whose sum is σ = 171123010560. Its totient is φ = 30149231616.

The previous prime is 74006972807. The next prime is 74006972929. The reversal of 74006972865 is 56827960047.

It is not a de Polignac number, because 74006972865 - 2⁶ = 74006972801 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 40595344 + ... + 40597166.

It is an arithmetic number, because the mean of its divisors is an integer number (594177120).

Almost surely, 2^74006972865 is an apocalyptic number.

It is an amenable number.

74006972865 is an abundant number, since it is smaller than the sum of its proper divisors (97116037695).

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

74006972865 is a wasteful number, since it uses less digits than its factorization.

74006972865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906 (or 1874 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 74006972865 in words is "seventy-four billion, six million, nine hundred seventy-two thousand, eight hundred sixty-five".