19907415552 has 40 divisors (see below), whose sum is σ = 53034603336. Its totient is φ = 6635804672.

The previous prime is 19907415533. The next prime is 19907415569. The reversal of 19907415552 is 25551470991.

It is a super-2 number, since 2×19907415552² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6478743 + ... + 6481814.

Almost surely, 2^19907415552 is an apocalyptic number.

19907415552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19907415552 is an abundant number, since it is smaller than the sum of its proper divisors (33127187784).

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

19907415552 is an equidigital number, since it uses as much as digits as its factorization.

19907415552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960578 (or 12960562 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 48.

The spelling of 19907415552 in words is "nineteen billion, nine hundred seven million, four hundred fifteen thousand, five hundred fifty-two".