7400125705921 has 16 divisors (see below), whose sum is σ = 8440966800000. Its totient is φ = 6426924173568.

The previous prime is 7400125705823. The next prime is 7400125705969. The reversal of 7400125705921 is 1295075210047.

It is a cyclic number.

It is not a de Polignac number, because 7400125705921 - 2⁹ = 7400125705409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7400125705991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4919871 + ... + 6245428.

It is an arithmetic number, because the mean of its divisors is an integer number (527560425000).

Almost surely, 2^{7400125705921} is an apocalyptic number.

It is an amenable number.

7400125705921 is a deficient number, since it is larger than the sum of its proper divisors (1040841094079).

7400125705921 is a wasteful number, since it uses less digits than its factorization.

7400125705921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11168328.

The product of its (nonzero) digits is 176400, while the sum is 43.

The spelling of 7400125705921 in words is "seven trillion, four hundred billion, one hundred twenty-five million, seven hundred five thousand, nine hundred twenty-one".