121726264960 has 32 divisors (see below), whose sum is σ = 291001853700. Its totient is φ = 48690505728.

The previous prime is 121726264889. The next prime is 121726264967. The reversal of 121726264960 is 69462627121.

It can be written as a sum of positive squares in 2 ways, for example, as 116947584576 + 4778680384 = 341976^2 + 69128^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×121726264960² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121726264960.

It is not an unprimeable number, because it can be changed into a prime (121726264967) 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, 95098005 + ... + 95099284.

Almost surely, 2^121726264960 is an apocalyptic number.

121726264960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121726264960 is an abundant number, since it is smaller than the sum of its proper divisors (169275588740).

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

121726264960 is an equidigital number, since it uses as much as digits as its factorization.

121726264960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190197308 (or 190197296 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 121726264960 in words is "one hundred twenty-one billion, seven hundred twenty-six million, two hundred sixty-four thousand, nine hundred sixty".