12697154904 has 128 divisors (see below), whose sum is σ = 37199554560. Its totient is φ = 3536191488.

The previous prime is 12697154867. The next prime is 12697154959. The reversal of 12697154904 is 40945179621.

It is a happy number.

It is a super-2 number, since 2×12697154904² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2026144 + ... + 2032400.

It is an arithmetic number, because the mean of its divisors is an integer number (290621520).

Almost surely, 2^12697154904 is an apocalyptic number.

12697154904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12697154904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18599777280).

12697154904 is an abundant number, since it is smaller than the sum of its proper divisors (24502399656).

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

12697154904 is a wasteful number, since it uses less digits than its factorization.

12697154904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6577 (or 6573 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 12697154904 in words is "twelve billion, six hundred ninety-seven million, one hundred fifty-four thousand, nine hundred four".