12923497780 has 24 divisors (see below), whose sum is σ = 27770494752. Its totient is φ = 5049180192.

The previous prime is 12923497753. The next prime is 12923497799. The reversal of 12923497780 is 8779432921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7512802 + ... + 7514521.

It is an arithmetic number, because the mean of its divisors is an integer number (1157103948).

Almost surely, 2^12923497780 is an apocalyptic number.

12923497780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12923497780 is an abundant number, since it is smaller than the sum of its proper divisors (14846996972).

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

12923497780 is a wasteful number, since it uses less digits than its factorization.

12923497780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15027375 (or 15027373 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 12923497780 in words is "twelve billion, nine hundred twenty-three million, four hundred ninety-seven thousand, seven hundred eighty".