245202407741644 has 24 divisors (see below), whose sum is σ = 439570906604928. Its totient is φ = 119610730162560.

The previous prime is 245202407741617. The next prime is 245202407741657. The reversal of 245202407741644 is 446147704202542.

It is a junction number, because it is equal to n+sod(n) for n = 245202407741591 and 245202407741600.

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, 159989637 + ... + 161514979.

It is an arithmetic number, because the mean of its divisors is an integer number (18315454441872).

Almost surely, 2^{245202407741644} is an apocalyptic number.

It is an amenable number.

245202407741644 is a deficient number, since it is larger than the sum of its proper divisors (194368498863284).

245202407741644 is a wasteful number, since it uses less digits than its factorization.

245202407741644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505585 (or 2505583 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 52.

The spelling of 245202407741644 in words is "two hundred forty-five trillion, two hundred two billion, four hundred seven million, seven hundred forty-one thousand, six hundred forty-four".