15440772080 has 80 divisors (see below), whose sum is σ = 36132687360. Its totient is φ = 6136383744.

The previous prime is 15440772037. The next prime is 15440772101. The reversal of 15440772080 is 8027704451.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10582391 + ... + 10583849.

It is an arithmetic number, because the mean of its divisors is an integer number (451658592).

Almost surely, 2^15440772080 is an apocalyptic number.

15440772080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15440772080 is an abundant number, since it is smaller than the sum of its proper divisors (20691915280).

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

15440772080 is a wasteful number, since it uses less digits than its factorization.

15440772080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2232 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 15440772080 in words is "fifteen billion, four hundred forty million, seven hundred seventy-two thousand, eighty".