74907470947 has 16 divisors (see below), whose sum is σ = 77231639200. Its totient is φ = 72620064000.

The previous prime is 74907470941. The next prime is 74907470959.

74907470947 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74907470947 is a prime.

It is a super-2 number, since 2×74907470947² (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74907470891 and 74907470900.

It is not an unprimeable number, because it can be changed into a prime (74907470941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7560697 + ... + 7570597.

It is an arithmetic number, because the mean of its divisors is an integer number (4826977450).

Almost surely, 2^74907470947 is an apocalyptic number.

74907470947 is a deficient number, since it is larger than the sum of its proper divisors (2324168253).

74907470947 is a wasteful number, since it uses less digits than its factorization.

74907470947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11734.

The product of its (nonzero) digits is 12446784, while the sum is 58.

The spelling of 74907470947 in words is "seventy-four billion, nine hundred seven million, four hundred seventy thousand, nine hundred forty-seven".