76665253281812 has 12 divisors (see below), whose sum is σ = 144484515800436. Its totient is φ = 35383963053120.

The previous prime is 76665253281769. The next prime is 76665253281821. The reversal of 76665253281812 is 21818235256667.

It can be written as a sum of positive squares in 2 ways, for example, as 3436774653316 + 73228478628496 = 1853854^2 + 8557364^2 .

It is a super-2 number, since 2×76665253281812² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737165896889 + ... + 737165896992.

It is an arithmetic number, because the mean of its divisors is an integer number (12040376316703).

Almost surely, 2^{76665253281812} is an apocalyptic number.

It is an amenable number.

76665253281812 is a deficient number, since it is larger than the sum of its proper divisors (67819262518624).

76665253281812 is a wasteful number, since it uses less digits than its factorization.

76665253281812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474331793898 (or 1474331793896 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 62.

The spelling of 76665253281812 in words is "seventy-six trillion, six hundred sixty-five billion, two hundred fifty-three million, two hundred eighty-one thousand, eight hundred twelve".