242873977970 has 32 divisors (see below), whose sum is σ = 473587717680. Its totient is φ = 89676537600.

The previous prime is 242873977961. The next prime is 242873977987. The reversal of 242873977970 is 79779378242.

It can be written as a sum of positive squares in 8 ways, for example, as 85545135361 + 157328842609 = 292481^2 + 396647^2 .

It is a Harshad number since it is a multiple of its sum of digits (65).

It is a junction number, because it is equal to n+sod(n) for n = 242873977897 and 242873977906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5505431 + ... + 5549370.

Almost surely, 2^242873977970 is an apocalyptic number.

242873977970 is a deficient number, since it is larger than the sum of its proper divisors (230713739710).

242873977970 is a wasteful number, since it uses less digits than its factorization.

242873977970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11054847 (or 11054821 counting only the distinct ones).

The product of its (nonzero) digits is 74680704, while the sum is 65.

The spelling of 242873977970 in words is "two hundred forty-two billion, eight hundred seventy-three million, nine hundred seventy-seven thousand, nine hundred seventy".