15486742020 has 48 divisors (see below), whose sum is σ = 43613559360. Its totient is φ = 4105923456.

The previous prime is 15486742009. The next prime is 15486742021. The reversal of 15486742020 is 2024768451.

It is a self number, because there is not a number n which added to its sum of digits gives 15486742020.

It is not an unprimeable number, because it can be changed into a prime (15486742021) 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, 735610 + ... + 756369.

It is an arithmetic number, because the mean of its divisors is an integer number (908615820).

Almost surely, 2^15486742020 is an apocalyptic number.

15486742020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15486742020 is an abundant number, since it is smaller than the sum of its proper divisors (28126817340).

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

15486742020 is a wasteful number, since it uses less digits than its factorization.

15486742020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492164 (or 1492162 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 15486742020 in words is "fifteen billion, four hundred eighty-six million, seven hundred forty-two thousand, twenty".