2157676412 has 6 divisors (see below), whose sum is σ = 3775933728. Its totient is φ = 1078838204.

The previous prime is 2157676387. The next prime is 2157676427. The reversal of 2157676412 is 2146767512.

It is a self number, because there is not a number n which added to its sum of digits gives 2157676412.

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, 269709548 + ... + 269709555.

It is an arithmetic number, because the mean of its divisors is an integer number (629322288).

Almost surely, 2^2157676412 is an apocalyptic number.

It is an amenable number.

2157676412 is a deficient number, since it is larger than the sum of its proper divisors (1618257316).

2157676412 is a wasteful number, since it uses less digits than its factorization.

2157676412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539419107 (or 539419105 counting only the distinct ones).

The product of its digits is 141120, while the sum is 41.

The square root of 2157676412 is about 46450.7956013673. The cubic root of 2157676412 is about 1292.1971274713.

The spelling of 2157676412 in words is "two billion, one hundred fifty-seven million, six hundred seventy-six thousand, four hundred twelve".