13872517810 has 8 divisors (see below), whose sum is σ = 24970532076. Its totient is φ = 5549007120.

The previous prime is 13872517787. The next prime is 13872517819. The reversal of 13872517810 is 1871527831.

It can be written as a sum of positive squares in 2 ways, for example, as 13850229969 + 22287841 = 117687^2 + 4721^2 .

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

It is a super-2 number, since 2×13872517810² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13872517819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693625881 + ... + 693625900.

Almost surely, 2^13872517810 is an apocalyptic number.

13872517810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13872517810 is a deficient number, since it is larger than the sum of its proper divisors (11098014266).

13872517810 is a wasteful number, since it uses less digits than its factorization.

13872517810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387251788.

The product of its (nonzero) digits is 94080, while the sum is 43.

The spelling of 13872517810 in words is "thirteen billion, eight hundred seventy-two million, five hundred seventeen thousand, eight hundred ten".