1538690470632 has 192 divisors, whose sum is σ = 5049119462400. Its totient is φ = 413945717760.

The previous prime is 1538690470621. The next prime is 1538690470661. The reversal of 1538690470632 is 2360740968351.

1538690470632 is a `hidden beast` number, since 1 + 5 + 3 + 86 + 90 + 470 + 6 + 3 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 752757 + ... + 1908932.

It is an arithmetic number, because the mean of its divisors is an integer number (26297497200).

It is a 1-persistent number, because it is pandigital, but 2⋅1538690470632 = 3077380941264 is not.

Almost surely, 2^{1538690470632} is an apocalyptic number.

1538690470632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1538690470632 is an abundant number, since it is smaller than the sum of its proper divisors (3510428991768).

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

1538690470632 is a wasteful number, since it uses less digits than its factorization.

1538690470632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661776 (or 2661769 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 54.

The spelling of 1538690470632 in words is "one trillion, five hundred thirty-eight billion, six hundred ninety million, four hundred seventy thousand, six hundred thirty-two".