2421125667 has 8 divisors (see below), whose sum is σ = 3586852880. Its totient is φ = 1614083760.

The previous prime is 2421125657. The next prime is 2421125671. The reversal of 2421125667 is 7665211242.

It is a happy number.

It is not a de Polignac number, because 2421125667 - 2⁸ = 2421125411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421125647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44835634 + ... + 44835687.

It is an arithmetic number, because the mean of its divisors is an integer number (448356610).

Almost surely, 2^2421125667 is an apocalyptic number.

2421125667 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2421125667 is a deficient number, since it is larger than the sum of its proper divisors (1165727213).

2421125667 is an equidigital number, since it uses as much as digits as its factorization.

2421125667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89671330 (or 89671324 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2421125667 is about 49204.9353927022. The cubic root of 2421125667 is about 1342.7828235945.

The spelling of 2421125667 in words is "two billion, four hundred twenty-one million, one hundred twenty-five thousand, six hundred sixty-seven".