1264650377 has 16 divisors (see below), whose sum is σ = 1337057280. Its totient is φ = 1193781072.

The previous prime is 1264650341. The next prime is 1264650389. The reversal of 1264650377 is 7730564621.

It is a cyclic number.

It is not a de Polignac number, because 1264650377 - 2¹⁸ = 1264388233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264650337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 849728 + ... + 851214.

It is an arithmetic number, because the mean of its divisors is an integer number (83566080).

Almost surely, 2^1264650377 is an apocalyptic number.

It is an amenable number.

1264650377 is a deficient number, since it is larger than the sum of its proper divisors (72406903).

1264650377 is a wasteful number, since it uses less digits than its factorization.

1264650377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 1264650377 is about 35561.9231341613. The cubic root of 1264650377 is about 1081.4094472467.

The spelling of 1264650377 in words is "one billion, two hundred sixty-four million, six hundred fifty thousand, three hundred seventy-seven".