74743126136 has 64 divisors (see below), whose sum is σ = 170624966400. Its totient is φ = 29981173248.

The previous prime is 74743126127. The next prime is 74743126147. The reversal of 74743126136 is 63162134747.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334865 + ... + 511488.

It is an arithmetic number, because the mean of its divisors is an integer number (2666015100).

Almost surely, 2^74743126136 is an apocalyptic number.

74743126136 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

74743126136 is an abundant number, since it is smaller than the sum of its proper divisors (95881840264).

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

74743126136 is a wasteful number, since it uses less digits than its factorization.

74743126136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846468 (or 846464 counting only the distinct ones).

The product of its digits is 508032, while the sum is 44.

The spelling of 74743126136 in words is "seventy-four billion, seven hundred forty-three million, one hundred twenty-six thousand, one hundred thirty-six".