1137438197280 has 720 divisors, whose sum is σ = 5042691339840. Its totient is φ = 236348513280.

The previous prime is 1137438197261. The next prime is 1137438197303. The reversal of 1137438197280 is 827918347311.

1137438197280 is a `hidden beast` number, since 1 + 1 + 374 + 3 + 8 + 197 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

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

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 10925311 + ... + 11028929.

It is an arithmetic number, because the mean of its divisors is an integer number (7003737972).

Almost surely, 2^{1137438197280} is an apocalyptic number.

1137438197280 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 1137438197280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2521345669920).

1137438197280 is an abundant number, since it is smaller than the sum of its proper divisors (3905253142560).

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

1137438197280 is a wasteful number, since it uses less digits than its factorization.

1137438197280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103675 (or 103647 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 1137438197280 in words is "one trillion, one hundred thirty-seven billion, four hundred thirty-eight million, one hundred ninety-seven thousand, two hundred eighty".