1249451052290 has 32 divisors (see below), whose sum is σ = 2570361517440. Its totient is φ = 428372849664.

The previous prime is 1249451052169. The next prime is 1249451052301. The reversal of 1249451052290 is 922501549421.

It is a super-2 number, since 2×1249451052290² (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 15 ways as a sum of consecutive naturals, for example, 3046241 + ... + 3431979.

It is an arithmetic number, because the mean of its divisors is an integer number (80323797420).

Almost surely, 2^{1249451052290} is an apocalyptic number.

1249451052290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1249451052290 is an abundant number, since it is smaller than the sum of its proper divisors (1320910465150).

1249451052290 is a wasteful number, since it uses less digits than its factorization.

1249451052290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432026.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 1249451052290 in words is "one trillion, two hundred forty-nine billion, four hundred fifty-one million, fifty-two thousand, two hundred ninety".