91677077619 has 8 divisors (see below), whose sum is σ = 123115500480. Its totient is φ = 60678353256.

The previous prime is 91677077543. The next prime is 91677077659.

91677077619 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 91677077619 - 2⁸ = 91677077363 is a prime.

It is a super-2 number, since 2×91677077619² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91677077659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109924137 + ... + 109924970.

It is an arithmetic number, because the mean of its divisors is an integer number (15389437560).

Almost surely, 2^91677077619 is an apocalyptic number.

91677077619 is a deficient number, since it is larger than the sum of its proper divisors (31438422861).

91677077619 is a wasteful number, since it uses less digits than its factorization.

91677077619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219849249.

The product of its (nonzero) digits is 7001316, while the sum is 60.

The spelling of 91677077619 in words is "ninety-one billion, six hundred seventy-seven million, seventy-seven thousand, six hundred nineteen".