3620617745 has 8 divisors (see below), whose sum is σ = 4383191016. Its totient is φ = 2870861056.

The previous prime is 3620617733. The next prime is 3620617769. The reversal of 3620617745 is 5477160263.

It can be written as a sum of positive squares in 4 ways, for example, as 412414864 + 3208202881 = 20308^2 + 56641^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3620617745 - 2¹² = 3620613649 is a prime.

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, 3203522 + ... + 3204651.

It is an arithmetic number, because the mean of its divisors is an integer number (547898877).

Almost surely, 2^3620617745 is an apocalyptic number.

It is an amenable number.

3620617745 is a deficient number, since it is larger than the sum of its proper divisors (762573271).

3620617745 is a wasteful number, since it uses less digits than its factorization.

3620617745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6408291.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 3620617745 is about 60171.5692416277. The cubic root of 3620617745 is about 1535.5391436558.

The spelling of 3620617745 in words is "three billion, six hundred twenty million, six hundred seventeen thousand, seven hundred forty-five".