131778774551260 has 24 divisors (see below), whose sum is σ = 276735666026736. Its totient is φ = 52711464207360.

The previous prime is 131778774551257. The next prime is 131778774551309. The reversal of 131778774551260 is 62155477877131.

It is a junction number, because it is equal to n+sod(n) for n = 131778774551192 and 131778774551201.

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, 30165679 + ... + 34256761.

It is an arithmetic number, because the mean of its divisors is an integer number (11530652751114).

Almost surely, 2^{131778774551260} is an apocalyptic number.

131778774551260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131778774551260 is an abundant number, since it is smaller than the sum of its proper divisors (144956891475476).

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

131778774551260 is a wasteful number, since it uses less digits than its factorization.

131778774551260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5701653 (or 5701651 counting only the distinct ones).

The product of its (nonzero) digits is 69148800, while the sum is 64.

The spelling of 131778774551260 in words is "one hundred thirty-one trillion, seven hundred seventy-eight billion, seven hundred seventy-four million, five hundred fifty-one thousand, two hundred sixty".