122887749240 has 256 divisors, whose sum is σ = 421800912000. Its totient is φ = 31800729600.

The previous prime is 122887749223. The next prime is 122887749269. The reversal of 122887749240 is 42947788221.

122887749240 is a `hidden beast` number, since 1 + 2 + 2 + 88 + 77 + 492 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16020126 + ... + 16027794.

Almost surely, 2^122887749240 is an apocalyptic number.

122887749240 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 122887749240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210900456000).

122887749240 is an abundant number, since it is smaller than the sum of its proper divisors (298913162760).

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

122887749240 is a wasteful number, since it uses less digits than its factorization.

122887749240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8127 (or 8117 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 122887749240 in words is "one hundred twenty-two billion, eight hundred eighty-seven million, seven hundred forty-nine thousand, two hundred forty".