1263875632 has 10 divisors (see below), whose sum is σ = 2448759068. Its totient is φ = 631937808.

The previous prime is 1263875629. The next prime is 1263875633. The reversal of 1263875632 is 2365783621.

It is a super-2 number, since 2×1263875632² = 3194763226326798848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1263875633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39496098 + ... + 39496129.

Almost surely, 2^1263875632 is an apocalyptic number.

It is an amenable number.

1263875632 is a deficient number, since it is larger than the sum of its proper divisors (1184883436).

1263875632 is an equidigital number, since it uses as much as digits as its factorization.

1263875632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78992235 (or 78992229 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 1263875632 is about 35551.0285645859. The cubic root of 1263875632 is about 1081.1885725759.

The spelling of 1263875632 in words is "one billion, two hundred sixty-three million, eight hundred seventy-five thousand, six hundred thirty-two".