749144834664 has 32 divisors (see below), whose sum is σ = 1886532621120. Its totient is φ = 247892206976.

The previous prime is 749144834651. The next prime is 749144834729. The reversal of 749144834664 is 466438441947.

It is a happy number.

It is a super-2 number, since 2×749144834664² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 749144834598 and 749144834607.

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, 113917764 + ... + 113924339.

It is an arithmetic number, because the mean of its divisors is an integer number (58954144410).

Almost surely, 2^749144834664 is an apocalyptic number.

It is an amenable number.

749144834664 is an abundant number, since it is smaller than the sum of its proper divisors (1137387786456).

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

749144834664 is a wasteful number, since it uses less digits than its factorization.

749144834664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227842249 (or 227842245 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 60.

The spelling of 749144834664 in words is "seven hundred forty-nine billion, one hundred forty-four million, eight hundred thirty-four thousand, six hundred sixty-four".