245322761772 has 48 divisors (see below), whose sum is σ = 625185187200. Its totient is φ = 74253653760.

The previous prime is 245322761753. The next prime is 245322761777. The reversal of 245322761772 is 277167223542.

It is not an unprimeable number, because it can be changed into a prime (245322761777) 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, 968397 + ... + 1195172.

It is an arithmetic number, because the mean of its divisors is an integer number (13024691400).

Almost surely, 2^245322761772 is an apocalyptic number.

245322761772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

245322761772 is an abundant number, since it is smaller than the sum of its proper divisors (379862425428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245322761772 is a wasteful number, since it uses less digits than its factorization.

245322761772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164446 (or 2164444 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 48.

The spelling of 245322761772 in words is "two hundred forty-five billion, three hundred twenty-two million, seven hundred sixty-one thousand, seven hundred seventy-two".