245422978776 has 24 divisors (see below), whose sum is σ = 664687234380. Its totient is φ = 81807659568.

The previous prime is 245422978763. The next prime is 245422978807. The reversal of 245422978776 is 677879224542.

It is a happy number.

245422978776 is a `hidden beast` number, since 2 + 4 + 542 + 2 + 9 + 7 + 87 + 7 + 6 = 666.

245422978776 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×245422978776² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1704326170 + ... + 1704326313.

Almost surely, 2^245422978776 is an apocalyptic number.

It is an amenable number.

245422978776 is an abundant number, since it is smaller than the sum of its proper divisors (419264255604).

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

245422978776 is a wasteful number, since it uses less digits than its factorization.

245422978776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3408652495 (or 3408652488 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 245422978776 in words is "two hundred forty-five billion, four hundred twenty-two million, nine hundred seventy-eight thousand, seven hundred seventy-six".