77557277214505 has 8 divisors (see below), whose sum is σ = 101529526535424. Its totient is φ = 56405292519600.

The previous prime is 77557277214493. The next prime is 77557277214517. The reversal of 77557277214505 is 50541277275577.

It is an interprime number because it is at equal distance from previous prime (77557277214493) and next prime (77557277214517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77557277214505 - 2¹⁵ = 77557277181737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 705066156441 + ... + 705066156550.

It is an arithmetic number, because the mean of its divisors is an integer number (12691190816928).

Almost surely, 2^{77557277214505} is an apocalyptic number.

It is an amenable number.

77557277214505 is a deficient number, since it is larger than the sum of its proper divisors (23972249320919).

77557277214505 is a wasteful number, since it uses less digits than its factorization.

77557277214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410132313007.

The product of its (nonzero) digits is 168070000, while the sum is 64.

The spelling of 77557277214505 in words is "seventy-seven trillion, five hundred fifty-seven billion, two hundred seventy-seven million, two hundred fourteen thousand, five hundred five".