15772287072 has 96 divisors (see below), whose sum is σ = 43741555200. Its totient is φ = 4968094208.

The previous prime is 15772287061. The next prime is 15772287127. The reversal of 15772287072 is 27078227751.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70579 + ... + 191117.

It is an arithmetic number, because the mean of its divisors is an integer number (455641200).

Almost surely, 2^15772287072 is an apocalyptic number.

15772287072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15772287072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21870777600).

15772287072 is an abundant number, since it is smaller than the sum of its proper divisors (27969268128).

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

15772287072 is a wasteful number, since it uses less digits than its factorization.

15772287072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120628 (or 120620 counting only the distinct ones).

The product of its (nonzero) digits is 768320, while the sum is 48.

The spelling of 15772287072 in words is "fifteen billion, seven hundred seventy-two million, two hundred eighty-seven thousand, seventy-two".