131926355820 has 144 divisors (see below), whose sum is σ = 460258413888. Its totient is φ = 29962483200.

The previous prime is 131926355789. The next prime is 131926355851. The reversal of 131926355820 is 28553629131.

131926355820 is a `hidden beast` number, since 1 + 3 + 1 + 9 + 2 + 63 + 5 + 582 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (131926355789) and next prime (131926355851).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135631 + ... + 531270.

Almost surely, 2^131926355820 is an apocalyptic number.

131926355820 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 131926355820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230129206944).

131926355820 is an abundant number, since it is smaller than the sum of its proper divisors (328332058068).

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

131926355820 is a wasteful number, since it uses less digits than its factorization.

131926355820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667080 (or 667075 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 131926355820 in words is "one hundred thirty-one billion, nine hundred twenty-six million, three hundred fifty-five thousand, eight hundred twenty".