77018049654 has 32 divisors (see below), whose sum is σ = 189582892800. Its totient is φ = 20312452512.

The previous prime is 77018049637. The next prime is 77018049671. The reversal of 77018049654 is 45694081077.

It is an interprime number because it is at equal distance from previous prime (77018049637) and next prime (77018049671).

It is a junction number, because it is equal to n+sod(n) for n = 77018049597 and 77018049606.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 70528804 + ... + 70529895.

It is an arithmetic number, because the mean of its divisors is an integer number (5924465400).

Almost surely, 2^77018049654 is an apocalyptic number.

77018049654 is an abundant number, since it is smaller than the sum of its proper divisors (112564843146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77018049654 is a wasteful number, since it uses less digits than its factorization.

77018049654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141058724.

The product of its (nonzero) digits is 1693440, while the sum is 51.

The spelling of 77018049654 in words is "seventy-seven billion, eighteen million, forty-nine thousand, six hundred fifty-four".