77401744667050 has 48 divisors (see below), whose sum is σ = 144020149542360. Its totient is φ = 30949322608640.

The previous prime is 77401744667047. The next prime is 77401744667069. The reversal of 77401744667050 is 5076644710477.

It can be written as a sum of positive squares in 12 ways, for example, as 6843105460489 + 70558639206561 = 2615933^2 + 8399919^2 .

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2101405434 + ... + 2101442266.

Almost surely, 2^{77401744667050} is an apocalyptic number.

77401744667050 is a deficient number, since it is larger than the sum of its proper divisors (66618404875310).

77401744667050 is a wasteful number, since it uses less digits than its factorization.

77401744667050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51147 (or 51142 counting only the distinct ones).

The product of its (nonzero) digits is 27659520, while the sum is 58.

The spelling of 77401744667050 in words is "seventy-seven trillion, four hundred one billion, seven hundred forty-four million, six hundred sixty-seven thousand, fifty".