11640954677 has 24 divisors (see below), whose sum is σ = 13339393536. Its totient is φ = 10139580000.

The previous prime is 11640954673. The next prime is 11640954769. The reversal of 11640954677 is 77645904611.

It is a happy number.

It is not a de Polignac number, because 11640954677 - 2² = 11640954673 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11640954671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 363488 + ... + 394214.

It is an arithmetic number, because the mean of its divisors is an integer number (555808064).

Almost surely, 2^11640954677 is an apocalyptic number.

It is an amenable number.

11640954677 is a deficient number, since it is larger than the sum of its proper divisors (1698438859).

11640954677 is a wasteful number, since it uses less digits than its factorization.

11640954677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30881 (or 30870 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The spelling of 11640954677 in words is "eleven billion, six hundred forty million, nine hundred fifty-four thousand, six hundred seventy-seven".