74136639360 has 576 divisors, whose sum is σ = 285001582320. Its totient is φ = 16343728128.

The previous prime is 74136639337. The next prime is 74136639371. The reversal of 74136639360 is 6393663147.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79120812 + ... + 79121748.

Almost surely, 2^74136639360 is an apocalyptic number.

74136639360 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74136639360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142500791160).

74136639360 is an abundant number, since it is smaller than the sum of its proper divisors (210864942960).

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

74136639360 is a wasteful number, since it uses less digits than its factorization.

74136639360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 48.

The spelling of 74136639360 in words is "seventy-four billion, one hundred thirty-six million, six hundred thirty-nine thousand, three hundred sixty".