15420875752 has 16 divisors (see below), whose sum is σ = 29029341600. Its totient is φ = 7679718000.

The previous prime is 15420875749. The next prime is 15420875753. The reversal of 15420875752 is 25757802451.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15420875753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837852 + ... + 3841867.

It is an arithmetic number, because the mean of its divisors is an integer number (1814333850).

Almost surely, 2^15420875752 is an apocalyptic number.

It is an amenable number.

15420875752 is a deficient number, since it is larger than the sum of its proper divisors (13608465848).

15420875752 is a wasteful number, since it uses less digits than its factorization.

15420875752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7679976 (or 7679972 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 46.

The spelling of 15420875752 in words is "fifteen billion, four hundred twenty million, eight hundred seventy-five thousand, seven hundred fifty-two".