4963156521845 has 4 divisors (see below), whose sum is σ = 5955787826220. Its totient is φ = 3970525217472.

The previous prime is 4963156521781. The next prime is 4963156521859. The reversal of 4963156521845 is 5481256513694.

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 2271148463089 + 2692008058756 = 1507033^2 + 1640734^2 .

It is a cyclic number.

It is not a de Polignac number, because 4963156521845 - 2⁶ = 4963156521781 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496315652180 + ... + 496315652189.

It is an arithmetic number, because the mean of its divisors is an integer number (1488946956555).

Almost surely, 2^{4963156521845} is an apocalyptic number.

It is an amenable number.

4963156521845 is a deficient number, since it is larger than the sum of its proper divisors (992631304375).

4963156521845 is an equidigital number, since it uses as much as digits as its factorization.

4963156521845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992631304374.

The product of its digits is 31104000, while the sum is 59.

The spelling of 4963156521845 in words is "four trillion, nine hundred sixty-three billion, one hundred fifty-six million, five hundred twenty-one thousand, eight hundred forty-five".