77500651355 has 4 divisors (see below), whose sum is σ = 93000781632. Its totient is φ = 62000521080.

The previous prime is 77500651309. The next prime is 77500651381. The reversal of 77500651355 is 55315600577.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 77500651355 - 2¹⁴ = 77500634971 is a prime.

It is a Duffinian 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, 7750065131 + ... + 7750065140.

It is an arithmetic number, because the mean of its divisors is an integer number (23250195408).

Almost surely, 2^77500651355 is an apocalyptic number.

77500651355 is a deficient number, since it is larger than the sum of its proper divisors (15500130277).

77500651355 is a wasteful number, since it uses less digits than its factorization.

77500651355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15500130276.

The product of its (nonzero) digits is 551250, while the sum is 44.

The spelling of 77500651355 in words is "seventy-seven billion, five hundred million, six hundred fifty-one thousand, three hundred fifty-five".