1249427190860 has 12 divisors (see below), whose sum is σ = 2623797100848. Its totient is φ = 499770876336.

The previous prime is 1249427190841. The next prime is 1249427190877. The reversal of 1249427190860 is 680917249421.

It is a super-2 number, since 2×1249427190860² (a number of 25 digits) contains 22 as substring.

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, 31235679752 + ... + 31235679791.

It is an arithmetic number, because the mean of its divisors is an integer number (218649758404).

Almost surely, 2^{1249427190860} is an apocalyptic number.

1249427190860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1249427190860 is an abundant number, since it is smaller than the sum of its proper divisors (1374369909988).

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

1249427190860 is a wasteful number, since it uses less digits than its factorization.

1249427190860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62471359552 (or 62471359550 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 1249427190860 in words is "one trillion, two hundred forty-nine billion, four hundred twenty-seven million, one hundred ninety thousand, eight hundred sixty".