15090389780 has 12 divisors (see below), whose sum is σ = 31689818580. Its totient is φ = 6036155904.

The previous prime is 15090389761. The next prime is 15090389789. The reversal of 15090389780 is 8798309051.

It can be written as a sum of positive squares in 2 ways, for example, as 9701068036 + 5389321744 = 98494^2 + 73412^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15090389789) 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, 377259725 + ... + 377259764.

It is an arithmetic number, because the mean of its divisors is an integer number (2640818215).

Almost surely, 2^15090389780 is an apocalyptic number.

15090389780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15090389780 is an abundant number, since it is smaller than the sum of its proper divisors (16599428800).

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

15090389780 is a wasteful number, since it uses less digits than its factorization.

15090389780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754519498 (or 754519496 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 15090389780 in words is "fifteen billion, ninety million, three hundred eighty-nine thousand, seven hundred eighty".