1425631320475 has 12 divisors (see below), whose sum is σ = 1767802518576. Its totient is φ = 1140492358880.

The previous prime is 1425631320469. The next prime is 1425631320479. The reversal of 1425631320475 is 5740231365241.

It is a de Polignac number, because none of the positive numbers 2^k-1425631320475 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425631320479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2444034 + ... + 2970616.

It is an arithmetic number, because the mean of its divisors is an integer number (147316876548).

Almost surely, 2^{1425631320475} is an apocalyptic number.

1425631320475 is a deficient number, since it is larger than the sum of its proper divisors (342171198101).

1425631320475 is a wasteful number, since it uses less digits than its factorization.

1425631320475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634886 (or 634881 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 1425631320475 in words is "one trillion, four hundred twenty-five billion, six hundred thirty-one million, three hundred twenty thousand, four hundred seventy-five".