12451356620 has 24 divisors (see below), whose sum is σ = 26516131488. Its totient is φ = 4910393600.

The previous prime is 12451356601. The next prime is 12451356629. The reversal of 12451356620 is 2665315421.

It is not an unprimeable number, because it can be changed into a prime (12451356629) 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, 4382861 + ... + 4385700.

It is an arithmetic number, because the mean of its divisors is an integer number (1104838812).

Almost surely, 2^12451356620 is an apocalyptic number.

12451356620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12451356620 is an abundant number, since it is smaller than the sum of its proper divisors (14064774868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12451356620 is a wasteful number, since it uses less digits than its factorization.

12451356620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8768641 (or 8768639 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12451356620 in words is "twelve billion, four hundred fifty-one million, three hundred fifty-six thousand, six hundred twenty".