77101428454850 has 48 divisors (see below), whose sum is σ = 145362194786592. Its totient is φ = 30421611490560.

The previous prime is 77101428454819. The next prime is 77101428454861. The reversal of 77101428454850 is 5845482410177.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11778407 + ... + 17115306.

It is an arithmetic number, because the mean of its divisors is an integer number (3028379058054).

Almost surely, 2^{77101428454850} is an apocalyptic number.

77101428454850 is a deficient number, since it is larger than the sum of its proper divisors (68260766331742).

77101428454850 is a wasteful number, since it uses less digits than its factorization.

77101428454850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28894451 (or 28894446 counting only the distinct ones).

The product of its (nonzero) digits is 10035200, while the sum is 56.

The spelling of 77101428454850 in words is "seventy-seven trillion, one hundred one billion, four hundred twenty-eight million, four hundred fifty-four thousand, eight hundred fifty".