207961970648 has 16 divisors (see below), whose sum is σ = 390061413000. Its totient is φ = 103945593856.

The previous prime is 207961970627. The next prime is 207961970659. The reversal of 207961970648 is 846079169702.

It is a super-2 number, since 2×207961970648² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4398953 + ... + 4445976.

Almost surely, 2^207961970648 is an apocalyptic number.

It is an amenable number.

207961970648 is a deficient number, since it is larger than the sum of its proper divisors (182099442352).

207961970648 is a wasteful number, since it uses less digits than its factorization.

207961970648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847874 (or 8847870 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 59.

The spelling of 207961970648 in words is "two hundred seven billion, nine hundred sixty-one million, nine hundred seventy thousand, six hundred forty-eight".