2972661535653 has 4 divisors (see below), whose sum is σ = 3963548714208. Its totient is φ = 1981774357100.

The previous prime is 2972661535651. The next prime is 2972661535663. The reversal of 2972661535653 is 3565351662792.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2972661535653 - 2¹ = 2972661535651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2972661535651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 495443589273 + ... + 495443589278.

It is an arithmetic number, because the mean of its divisors is an integer number (990887178552).

Almost surely, 2^{2972661535653} is an apocalyptic number.

It is an amenable number.

2972661535653 is a deficient number, since it is larger than the sum of its proper divisors (990887178555).

2972661535653 is an equidigital number, since it uses as much as digits as its factorization.

2972661535653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990887178554.

The product of its digits is 61236000, while the sum is 60.

The spelling of 2972661535653 in words is "two trillion, nine hundred seventy-two billion, six hundred sixty-one million, five hundred thirty-five thousand, six hundred fifty-three".