74627455472648 has 32 divisors (see below), whose sum is σ = 150760437793560. Its totient is φ = 34427353336320.

The previous prime is 74627455472569. The next prime is 74627455472683. The reversal of 74627455472648 is 84627455472647.

It can be written as a sum of positive squares in 4 ways, for example, as 53086699467844 + 21540756004804 = 7286062^2 + 4641202^2 .

It is a super-2 number, since 2×74627455472648² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167355965 + ... + 167801292.

Almost surely, 2^{74627455472648} is an apocalyptic number.

It is an amenable number.

74627455472648 is an abundant number, since it is smaller than the sum of its proper divisors (76132982320912).

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

74627455472648 is a wasteful number, since it uses less digits than its factorization.

74627455472648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335159417 (or 335159413 counting only the distinct ones).

The product of its digits is 2528870400, while the sum is 71.

Subtracting 74627455472648 from its reverse (84627455472647), we obtain a palindrome (9999999999999).

The spelling of 74627455472648 in words is "seventy-four trillion, six hundred twenty-seven billion, four hundred fifty-five million, four hundred seventy-two thousand, six hundred forty-eight".