1951087916 has 12 divisors (see below), whose sum is σ = 3416501088. Its totient is φ = 974944752.

The previous prime is 1951087843. The next prime is 1951087937. The reversal of 1951087916 is 6197801591.

It is a super-2 number, since 2×1951087916² = 7613488111922446112, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142436 + ... + 155531.

It is an arithmetic number, because the mean of its divisors is an integer number (284708424).

Almost surely, 2^1951087916 is an apocalyptic number.

It is an amenable number.

1951087916 is a deficient number, since it is larger than the sum of its proper divisors (1465413172).

1951087916 is a wasteful number, since it uses less digits than its factorization.

1951087916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299608 (or 299606 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 47.

The square root of 1951087916 is about 44171.1208370356. The cubic root of 1951087916 is about 1249.5652709060.

The spelling of 1951087916 in words is "one billion, nine hundred fifty-one million, eighty-seven thousand, nine hundred sixteen".