15250948780 has 24 divisors (see below), whose sum is σ = 32192943552. Its totient is φ = 6068769792.

The previous prime is 15250948753. The next prime is 15250948781. The reversal of 15250948780 is 8784905251.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (15250948781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1971652 + ... + 1979371.

It is an arithmetic number, because the mean of its divisors is an integer number (1341372648).

Almost surely, 2^15250948780 is an apocalyptic number.

15250948780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15250948780 is an abundant number, since it is smaller than the sum of its proper divisors (16941994772).

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

15250948780 is a wasteful number, since it uses less digits than its factorization.

15250948780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3951225 (or 3951223 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 49.

The spelling of 15250948780 in words is "fifteen billion, two hundred fifty million, nine hundred forty-eight thousand, seven hundred eighty".