15890423480 has 32 divisors (see below), whose sum is σ = 35760700800. Its totient is φ = 6354880896.

The previous prime is 15890423477. The next prime is 15890423491. The reversal of 15890423480 is 8432409851.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173534 + ... + 248786.

It is an arithmetic number, because the mean of its divisors is an integer number (1117521900).

Almost surely, 2^15890423480 is an apocalyptic number.

15890423480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15890423480 is an abundant number, since it is smaller than the sum of its proper divisors (19870277320).

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

15890423480 is a wasteful number, since it uses less digits than its factorization.

15890423480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80543 (or 80539 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 15890423480 in words is "fifteen billion, eight hundred ninety million, four hundred twenty-three thousand, four hundred eighty".