749740764864 has 504 divisors, whose sum is σ = 2622892044528. Its totient is φ = 187315752960.

The previous prime is 749740764821. The next prime is 749740764911. The reversal of 749740764864 is 468467047947.

It is a super-2 number, since 2×749740764864² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749740764795 and 749740764804.

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, 44143254 + ... + 44160234.

It is an arithmetic number, because the mean of its divisors is an integer number (5204150882).

Almost surely, 2^749740764864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749740764864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1311446022264).

749740764864 is an abundant number, since it is smaller than the sum of its proper divisors (1873151279664).

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

749740764864 is a wasteful number, since it uses less digits than its factorization.

749740764864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17061 (or 17025 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 66.

The spelling of 749740764864 in words is "seven hundred forty-nine billion, seven hundred forty million, seven hundred sixty-four thousand, eight hundred sixty-four".