1247740662612 has 24 divisors (see below), whose sum is σ = 2951277003136. Its totient is φ = 410216107968.

The previous prime is 1247740662589. The next prime is 1247740662617. The reversal of 1247740662612 is 2162660477421.

It is a super-2 number, since 2×1247740662612² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247740662617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712179868 + ... + 712181619.

Almost surely, 2^{1247740662612} is an apocalyptic number.

1247740662612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1247740662612 is an abundant number, since it is smaller than the sum of its proper divisors (1703536340524).

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

1247740662612 is a wasteful number, since it uses less digits than its factorization.

1247740662612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424361567 (or 1424361565 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 48.

The spelling of 1247740662612 in words is "one trillion, two hundred forty-seven billion, seven hundred forty million, six hundred sixty-two thousand, six hundred twelve".