1272708616 has 64 divisors (see below), whose sum is σ = 2614680000. Its totient is φ = 578462976.

The previous prime is 1272708601. The next prime is 1272708631. The reversal of 1272708616 is 6168072721.

It is an interprime number because it is at equal distance from previous prime (1272708601) and next prime (1272708631).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788226 + ... + 789838.

It is an arithmetic number, because the mean of its divisors is an integer number (40854375).

Almost surely, 2^1272708616 is an apocalyptic number.

It is an amenable number.

1272708616 is an abundant number, since it is smaller than the sum of its proper divisors (1341971384).

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

1272708616 is a wasteful number, since it uses less digits than its factorization.

1272708616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846 (or 1842 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 1272708616 is about 35675.0419200875. The cubic root of 1272708616 is about 1083.7014673351.

The spelling of 1272708616 in words is "one billion, two hundred seventy-two million, seven hundred eight thousand, six hundred sixteen".