13987956470 has 32 divisors (see below), whose sum is σ = 25835798016. Its totient is φ = 5449536000.

The previous prime is 13987956469. The next prime is 13987956481. The reversal of 13987956470 is 7465978931.

It is a super-2 number, since 2×13987956470² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 218027 + ... + 274793.

It is an arithmetic number, because the mean of its divisors is an integer number (807368688).

Almost surely, 2^13987956470 is an apocalyptic number.

13987956470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13987956470 is a deficient number, since it is larger than the sum of its proper divisors (11847841546).

13987956470 is a wasteful number, since it uses less digits than its factorization.

13987956470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57416.

The product of its (nonzero) digits is 11430720, while the sum is 59.

The spelling of 13987956470 in words is "thirteen billion, nine hundred eighty-seven million, nine hundred fifty-six thousand, four hundred seventy".