74252978468 has 6 divisors (see below), whose sum is σ = 129942712326. Its totient is φ = 37126489232.

The previous prime is 74252978417. The next prime is 74252978477. The reversal of 74252978468 is 86487925247.

It can be written as a sum of positive squares in only one way, i.e., 67014712384 + 7238266084 = 258872^2 + 85078^2 .

It is a super-2 number, since 2×74252978468² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 74252978468.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9281622305 + ... + 9281622312.

It is an arithmetic number, because the mean of its divisors is an integer number (21657118721).

Almost surely, 2^74252978468 is an apocalyptic number.

It is an amenable number.

74252978468 is a deficient number, since it is larger than the sum of its proper divisors (55689733858).

74252978468 is a wasteful number, since it uses less digits than its factorization.

74252978468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18563244621 (or 18563244619 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 62.

The spelling of 74252978468 in words is "seventy-four billion, two hundred fifty-two million, nine hundred seventy-eight thousand, four hundred sixty-eight".