1245924295421 has 12 divisors (see below), whose sum is σ = 1359760108032. Its totient is φ = 1141028166096.

The previous prime is 1245924295411. The next prime is 1245924295433.

1245924295421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1245924295421 - 2³⁴ = 1228744426237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1245924295421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245924295411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29003471 + ... + 29046396.

It is an arithmetic number, because the mean of its divisors is an integer number (113313342336).

Almost surely, 2^{1245924295421} is an apocalyptic number.

It is an amenable number.

1245924295421 is a deficient number, since it is larger than the sum of its proper divisors (113835812611).

1245924295421 is a wasteful number, since it uses less digits than its factorization.

1245924295421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58050020 (or 58050007 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The spelling of 1245924295421 in words is "one trillion, two hundred forty-five billion, nine hundred twenty-four million, two hundred ninety-five thousand, four hundred twenty-one".