77251800346 has 48 divisors (see below), whose sum is σ = 136856941632. Its totient is φ = 32602953600.

The previous prime is 77251800343. The next prime is 77251800349. The reversal of 77251800346 is 64300815277.

It is an interprime number because it is at equal distance from previous prime (77251800343) and next prime (77251800349).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (77251800343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6304786 + ... + 6317026.

It is an arithmetic number, because the mean of its divisors is an integer number (2851186284).

Almost surely, 2^77251800346 is an apocalyptic number.

77251800346 is a deficient number, since it is larger than the sum of its proper divisors (59605141286).

77251800346 is a wasteful number, since it uses less digits than its factorization.

77251800346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13235 (or 13228 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 77251800346 in words is "seventy-seven billion, two hundred fifty-one million, eight hundred thousand, three hundred forty-six".