1425091121280 has 128 divisors (see below), whose sum is σ = 5047197782400. Its totient is φ = 380024294400.

The previous prime is 1425091121273. The next prime is 1425091121291. The reversal of 1425091121280 is 821211905241.

1425091121280 is a `hidden beast` number, since 1 + 4 + 2 + 509 + 1 + 121 + 28 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41217996 + ... + 41252555.

It is an arithmetic number, because the mean of its divisors is an integer number (39431232675).

Almost surely, 2^{1425091121280} is an apocalyptic number.

1425091121280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425091121280 is an abundant number, since it is smaller than the sum of its proper divisors (3622106661120).

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

1425091121280 is an equidigital number, since it uses as much as digits as its factorization.

1425091121280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82470579 (or 82470561 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The spelling of 1425091121280 in words is "one trillion, four hundred twenty-five billion, ninety-one million, one hundred twenty-one thousand, two hundred eighty".