131758257920 has 144 divisors (see below), whose sum is σ = 335762467488. Its totient is φ = 49366302720.

The previous prime is 131758257893. The next prime is 131758257923. The reversal of 131758257920 is 29752857131.

It is a super-2 number, since 2×131758257920² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131758257923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4577012 + ... + 4605708.

It is an arithmetic number, because the mean of its divisors is an integer number (2331683802).

Almost surely, 2^131758257920 is an apocalyptic number.

131758257920 is a gapful number since it is divisible by the number (10) 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 131758257920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167881233744).

131758257920 is an abundant number, since it is smaller than the sum of its proper divisors (204004209568).

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

131758257920 is a wasteful number, since it uses less digits than its factorization.

131758257920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28946 (or 28932 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 131758257920 in words is "one hundred thirty-one billion, seven hundred fifty-eight million, two hundred fifty-seven thousand, nine hundred twenty".