1249288963740 has 120 divisors (see below), whose sum is σ = 3921161022240. Its totient is φ = 332965613952.

The previous prime is 1249288963723. The next prime is 1249288963757. The reversal of 1249288963740 is 473698829421.

1249288963740 is a `hidden beast` number, since 1 + 2 + 492 + 8 + 89 + 63 + 7 + 4 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1249288963723) and next prime (1249288963757).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2838774 + ... + 3249186.

It is an arithmetic number, because the mean of its divisors is an integer number (32676341852).

Almost surely, 2^{1249288963740} is an apocalyptic number.

1249288963740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1249288963740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1960580511120).

1249288963740 is an abundant number, since it is smaller than the sum of its proper divisors (2671872058500).

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

1249288963740 is a wasteful number, since it uses less digits than its factorization.

1249288963740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412313 (or 412302 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 1249288963740 in words is "one trillion, two hundred forty-nine billion, two hundred eighty-eight million, nine hundred sixty-three thousand, seven hundred forty".