772814387690 has 32 divisors (see below), whose sum is σ = 1394132912640. Its totient is φ = 308444788800.

The previous prime is 772814387689. The next prime is 772814387729. The reversal of 772814387690 is 96783418277.

It is a super-2 number, since 2×772814387690² (a number of 25 digits) contains 22 as substring.

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, 10740935 + ... + 10812645.

It is an arithmetic number, because the mean of its divisors is an integer number (43566653520).

Almost surely, 2^772814387690 is an apocalyptic number.

772814387690 is a deficient number, since it is larger than the sum of its proper divisors (621318524950).

772814387690 is a wasteful number, since it uses less digits than its factorization.

772814387690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74078.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 772814387690 in words is "seven hundred seventy-two billion, eight hundred fourteen million, three hundred eighty-seven thousand, six hundred ninety".