11871651010 has 16 divisors (see below), whose sum is σ = 21401707896. Its totient is φ = 4741385728.

The previous prime is 11871650971. The next prime is 11871651017. The reversal of 11871651010 is 1015617811.

It can be written as a sum of positive squares in 4 ways, for example, as 5592197961 + 6279453049 = 74781^2 + 79243^2 .

It is not an unprimeable number, because it can be changed into a prime (11871651017) 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, 902479 + ... + 915538.

Almost surely, 2^11871651010 is an apocalyptic number.

11871651010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11871651010 is a deficient number, since it is larger than the sum of its proper divisors (9530056886).

11871651010 is a wasteful number, since it uses less digits than its factorization.

11871651010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1818677.

The product of its (nonzero) digits is 1680, while the sum is 31.

The spelling of 11871651010 in words is "eleven billion, eight hundred seventy-one million, six hundred fifty-one thousand, ten".