2423635624721 has 8 divisors (see below), whose sum is σ = 2489168953320. Its totient is φ = 2358103857408.

The previous prime is 2423635624673. The next prime is 2423635624723. The reversal of 2423635624721 is 1274265363242.

It can be written as a sum of positive squares in 4 ways, for example, as 56530293121 + 2367105331600 = 237761^2 + 1538540^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2423635624721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2423635624723) 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, 3195785 + ... + 3880761.

It is an arithmetic number, because the mean of its divisors is an integer number (311146119165).

Almost surely, 2^{2423635624721} is an apocalyptic number.

It is an amenable number.

2423635624721 is a deficient number, since it is larger than the sum of its proper divisors (65533328599).

2423635624721 is an equidigital number, since it uses as much as digits as its factorization.

2423635624721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780643.

The product of its digits is 2903040, while the sum is 47.

The spelling of 2423635624721 in words is "two trillion, four hundred twenty-three billion, six hundred thirty-five million, six hundred twenty-four thousand, seven hundred twenty-one".