1277490794 has 16 divisors (see below), whose sum is σ = 2000479680. Its totient is φ = 610690080.

The previous prime is 1277490787. The next prime is 1277490829. The reversal of 1277490794 is 4970947721.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120542 + ... + 130710.

It is an arithmetic number, because the mean of its divisors is an integer number (125029980).

Almost surely, 2^1277490794 is an apocalyptic number.

1277490794 is a deficient number, since it is larger than the sum of its proper divisors (722988886).

1277490794 is a wasteful number, since it uses less digits than its factorization.

1277490794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925.

The product of its (nonzero) digits is 889056, while the sum is 50.

The square root of 1277490794 is about 35742.0032175031. The cubic root of 1277490794 is about 1085.0570999277.

The spelling of 1277490794 in words is "one billion, two hundred seventy-seven million, four hundred ninety thousand, seven hundred ninety-four".