15680781350 has 24 divisors (see below), whose sum is σ = 31409812560. Its totient is φ = 5789826720.

The previous prime is 15680781341. The next prime is 15680781373. The reversal of 15680781350 is 5318708651.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12061490 + ... + 12062789.

It is an arithmetic number, because the mean of its divisors is an integer number (1308742190).

Almost surely, 2^15680781350 is an apocalyptic number.

15680781350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15680781350 is an abundant number, since it is smaller than the sum of its proper divisors (15729031210).

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

15680781350 is a wasteful number, since it uses less digits than its factorization.

15680781350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24124304 (or 24124299 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 15680781350 in words is "fifteen billion, six hundred eighty million, seven hundred eighty-one thousand, three hundred fifty".