2635920929945 has 8 divisors (see below), whose sum is σ = 3163407665544. Its totient is φ = 2108535044224.

The previous prime is 2635920929923. The next prime is 2635920929953. The reversal of 2635920929945 is 5499290295362.

It can be written as a sum of positive squares in 4 ways, for example, as 127488987136 + 2508431942809 = 357056^2 + 1583803^2 .

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-2635920929945 is a prime.

It is a super-2 number, since 2×2635920929945² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25154954 + ... + 25259523.

It is an arithmetic number, because the mean of its divisors is an integer number (395425958193).

Almost surely, 2^{2635920929945} is an apocalyptic number.

It is an amenable number.

2635920929945 is a deficient number, since it is larger than the sum of its proper divisors (527486735599).

2635920929945 is a wasteful number, since it uses less digits than its factorization.

2635920929945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50424939.

The product of its (nonzero) digits is 94478400, while the sum is 65.

The spelling of 2635920929945 in words is "two trillion, six hundred thirty-five billion, nine hundred twenty million, nine hundred twenty-nine thousand, nine hundred forty-five".