248666691292 has 36 divisors (see below), whose sum is σ = 445473752920. Its totient is φ = 121453480512.

The previous prime is 248666691271. The next prime is 248666691379. The reversal of 248666691292 is 292196666842.

It is a super-2 number, since 2×248666691292² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 248666691292.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2524723 + ... + 2621365.

Almost surely, 2^248666691292 is an apocalyptic number.

It is an amenable number.

248666691292 is a deficient number, since it is larger than the sum of its proper divisors (196807061628).

248666691292 is a wasteful number, since it uses less digits than its factorization.

248666691292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96982 (or 96927 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 61.

The spelling of 248666691292 in words is "two hundred forty-eight billion, six hundred sixty-six million, six hundred ninety-one thousand, two hundred ninety-two".