1264746873 has 32 divisors (see below), whose sum is σ = 1857131136. Its totient is φ = 760877568.

The previous prime is 1264746853. The next prime is 1264746881. The reversal of 1264746873 is 3786474621.

It is a happy number.

It is not a de Polignac number, because 1264746873 - 2¹⁸ = 1264484729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1264746853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356215 + ... + 359747.

It is an arithmetic number, because the mean of its divisors is an integer number (58035348).

Almost surely, 2^1264746873 is an apocalyptic number.

1264746873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1264746873 is a deficient number, since it is larger than the sum of its proper divisors (592384263).

1264746873 is a wasteful number, since it uses less digits than its factorization.

1264746873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753.

The product of its digits is 1354752, while the sum is 48.

The square root of 1264746873 is about 35563.2798403072. The cubic root of 1264746873 is about 1081.4369512994.

The spelling of 1264746873 in words is "one billion, two hundred sixty-four million, seven hundred forty-six thousand, eight hundred seventy-three".