12377653281 has 48 divisors (see below), whose sum is σ = 21551234880. Its totient is φ = 6999955200.

The previous prime is 12377653259. The next prime is 12377653307. The reversal of 12377653281 is 18235677321.

12377653281 is a `hidden beast` number, since 1 + 2 + 37 + 7 + 6 + 532 + 81 = 666.

It is not a de Polignac number, because 12377653281 - 2⁶ = 12377653217 is a prime.

It is a super-2 number, since 2×12377653281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12377653781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80106 + ... + 176556.

It is an arithmetic number, because the mean of its divisors is an integer number (448984060).

Almost surely, 2^12377653281 is an apocalyptic number.

It is an amenable number.

12377653281 is a deficient number, since it is larger than the sum of its proper divisors (9173581599).

12377653281 is an equidigital number, since it uses as much as digits as its factorization.

12377653281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96571 (or 96558 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The spelling of 12377653281 in words is "twelve billion, three hundred seventy-seven million, six hundred fifty-three thousand, two hundred eighty-one".