42139462500 has 432 divisors, whose sum is σ = 141131966976. Its totient is φ = 10584000000.

The previous prime is 42139462499. The next prime is 42139462559. The reversal of 42139462500 is 526493124.

It is a happy number.

42139462500 is a `hidden beast` number, since 4 + 2 + 1 + 3 + 94 + 62 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 149962360 + ... + 149962640.

It is an arithmetic number, because the mean of its divisors is an integer number (326694368).

Almost surely, 2^42139462500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42139462500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70565983488).

42139462500 is an abundant number, since it is smaller than the sum of its proper divisors (98992504476).

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

42139462500 is a wasteful number, since it uses less digits than its factorization.

42139462500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 42139462500 in words is "forty-two billion, one hundred thirty-nine million, four hundred sixty-two thousand, five hundred".