2615393972 has 6 divisors (see below), whose sum is σ = 4576939458. Its totient is φ = 1307696984.

The previous prime is 2615393959. The next prime is 2615393999. The reversal of 2615393972 is 2793935162.

It can be written as a sum of positive squares in only one way, i.e., 1508234896 + 1107159076 = 38836^2 + 33274^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326924243 + ... + 326924250.

It is an arithmetic number, because the mean of its divisors is an integer number (762823243).

Almost surely, 2^2615393972 is an apocalyptic number.

It is an amenable number.

2615393972 is a deficient number, since it is larger than the sum of its proper divisors (1961545486).

2615393972 is a wasteful number, since it uses less digits than its factorization.

2615393972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653848497 (or 653848495 counting only the distinct ones).

The product of its digits is 612360, while the sum is 47.

The square root of 2615393972 is about 51140.9226745079. The cubic root of 2615393972 is about 1377.7773455475. Note that the first 3 decimals are identical.

The spelling of 2615393972 in words is "two billion, six hundred fifteen million, three hundred ninety-three thousand, nine hundred seventy-two".