245722518993 has 16 divisors (see below), whose sum is σ = 374442715136. Its totient is φ = 140409717840.

The previous prime is 245722518989. The next prime is 245722519013. The reversal of 245722518993 is 399815227542.

It is not a de Polignac number, because 245722518993 - 2² = 245722518989 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245722518893) 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, 1092330 + ... + 1297932.

It is an arithmetic number, because the mean of its divisors is an integer number (23402669696).

Almost surely, 2^245722518993 is an apocalyptic number.

It is an amenable number.

245722518993 is a deficient number, since it is larger than the sum of its proper divisors (128720196143).

245722518993 is a wasteful number, since it uses less digits than its factorization.

245722518993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262524.

The product of its digits is 10886400, while the sum is 57.

The spelling of 245722518993 in words is "two hundred forty-five billion, seven hundred twenty-two million, five hundred eighteen thousand, nine hundred ninety-three".