2615657442 has 16 divisors (see below), whose sum is σ = 5342620032. Its totient is φ = 853334960.

The previous prime is 2615657441. The next prime is 2615657483. The reversal of 2615657442 is 2447565162.

It is a junction number, because it is equal to n+sod(n) for n = 2615657394 and 2615657403.

It is not an unprimeable number, because it can be changed into a prime (2615657441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4637409 + ... + 4637972.

It is an arithmetic number, because the mean of its divisors is an integer number (333913752).

Almost surely, 2^2615657442 is an apocalyptic number.

2615657442 is an abundant number, since it is smaller than the sum of its proper divisors (2726962590).

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

2615657442 is a wasteful number, since it uses less digits than its factorization.

2615657442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9275433.

The product of its digits is 403200, while the sum is 42.

The square root of 2615657442 is about 51143.4985310939. The cubic root of 2615657442 is about 1377.8236089164.

The spelling of 2615657442 in words is "two billion, six hundred fifteen million, six hundred fifty-seven thousand, four hundred forty-two".