401157260563643 has 4 divisors (see below), whose sum is σ = 401220206947008. Its totient is φ = 401094314180280.

The previous prime is 401157260563601. The next prime is 401157260563667. The reversal of 401157260563643 is 346365062751104.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 401157260563643 - 2¹⁶ = 401157260498107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401157260563043) 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, 31473182123 + ... + 31473194868.

It is an arithmetic number, because the mean of its divisors is an integer number (100305051736752).

Almost surely, 2^{401157260563643} is an apocalyptic number.

401157260563643 is a deficient number, since it is larger than the sum of its proper divisors (62946383365).

401157260563643 is an equidigital number, since it uses as much as digits as its factorization.

401157260563643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62946383364.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 401157260563643 in words is "four hundred one trillion, one hundred fifty-seven billion, two hundred sixty million, five hundred sixty-three thousand, six hundred forty-three".