1265470000 has 50 divisors (see below), whose sum is σ = 3063853628. Its totient is φ = 506184000.

The previous prime is 1265469983. The next prime is 1265470027. The reversal of 1265470000 is 745621.

It is a tau number, because it is divible by the number of its divisors (50).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 53274 + ... + 73273.

Almost surely, 2^1265470000 is an apocalyptic number.

1265470000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1265470000 is an abundant number, since it is smaller than the sum of its proper divisors (1798383628).

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

1265470000 is an equidigital number, since it uses as much as digits as its factorization.

1265470000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126575 (or 126554 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1265470000 is about 35573.4451522480. The cubic root of 1265470000 is about 1081.6430181632.

The spelling of 1265470000 in words is "one billion, two hundred sixty-five million, four hundred seventy thousand".