74247165072 has 30 divisors (see below), whose sum is σ = 207788941542. Its totient is φ = 24749054976.

The previous prime is 74247165067. The next prime is 74247165077. The reversal of 74247165072 is 27056174247.

74247165072 is a `hidden beast` number, since 74 + 2 + 4 + 71 + 6 + 507 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (74247165067) and next prime (74247165077).

It can be written as a sum of positive squares in only one way, i.e., 73960065936 + 287099136 = 271956^2 + 16944^2 .

It is not an unprimeable number, because it can be changed into a prime (74247165077) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 257802513 + ... + 257802800.

Almost surely, 2^74247165072 is an apocalyptic number.

74247165072 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

74247165072 is an abundant number, since it is smaller than the sum of its proper divisors (133541776470).

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

74247165072 is a wasteful number, since it uses less digits than its factorization.

74247165072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515605327 (or 515605318 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 74247165072 in words is "seventy-four billion, two hundred forty-seven million, one hundred sixty-five thousand, seventy-two".