2046537856457 has 4 divisors (see below), whose sum is σ = 2048871423876. Its totient is φ = 2044204289040.

The previous prime is 2046537856427. The next prime is 2046537856499. The reversal of 2046537856457 is 7546587356402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1821687390601 + 224850465856 = 1349699^2 + 474184^2 .

It is a cyclic number.

It is not a de Polignac number, because 2046537856457 - 2⁸ = 2046537856201 is a prime.

It is a super-2 number, since 2×2046537856457² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2046537856457.

It is not an unprimeable number, because it can be changed into a prime (2046537856427) 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, 1166782394 + ... + 1166784147.

It is an arithmetic number, because the mean of its divisors is an integer number (512217855969).

Almost surely, 2^{2046537856457} is an apocalyptic number.

It is an amenable number.

2046537856457 is a deficient number, since it is larger than the sum of its proper divisors (2333567419).

2046537856457 is an equidigital number, since it uses as much as digits as its factorization.

2046537856457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2333567418.

The product of its (nonzero) digits is 169344000, while the sum is 62.

The spelling of 2046537856457 in words is "two trillion, forty-six billion, five hundred thirty-seven million, eight hundred fifty-six thousand, four hundred fifty-seven".