2158102676 has 6 divisors (see below), whose sum is σ = 3776679690. Its totient is φ = 1079051336.

The previous prime is 2158102651. The next prime is 2158102699. The reversal of 2158102676 is 6762018512.

It can be written as a sum of positive squares in only one way, i.e., 1473024400 + 685078276 = 38380^2 + 26174^2 .

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, 269762831 + ... + 269762838.

It is an arithmetic number, because the mean of its divisors is an integer number (629446615).

Almost surely, 2^2158102676 is an apocalyptic number.

It is an amenable number.

2158102676 is a deficient number, since it is larger than the sum of its proper divisors (1618577014).

2158102676 is a wasteful number, since it uses less digits than its factorization.

2158102676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539525673 (or 539525671 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 2158102676 is about 46455.3837138388. The cubic root of 2158102676 is about 1292.2822160485.

The spelling of 2158102676 in words is "two billion, one hundred fifty-eight million, one hundred two thousand, six hundred seventy-six".