38453340857 has 16 divisors (see below), whose sum is σ = 39344554704. Its totient is φ = 37571040000.

The previous prime is 38453340781. The next prime is 38453340869. The reversal of 38453340857 is 75804335483.

It can be written as a sum of positive squares in 8 ways, for example, as 36433647376 + 2019693481 = 190876^2 + 44941^2 .

It is a cyclic number.

It is not a de Polignac number, because 38453340857 - 2¹⁴ = 38453324473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38453330857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14363003 + ... + 14365679.

It is an arithmetic number, because the mean of its divisors is an integer number (2459034669).

Almost surely, 2^38453340857 is an apocalyptic number.

It is an amenable number.

38453340857 is a deficient number, since it is larger than the sum of its proper divisors (891213847).

38453340857 is a wasteful number, since it uses less digits than its factorization.

38453340857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 38453340857 in words is "thirty-eight billion, four hundred fifty-three million, three hundred forty thousand, eight hundred fifty-seven".