9127640915442 has 192 divisors, whose sum is σ = 23895662079744. Its totient is φ = 2557134178560.

The previous prime is 9127640915429. The next prime is 9127640915443. The reversal of 9127640915442 is 2445190467219.

9127640915442 is a `hidden beast` number, since 9 + 1 + 2 + 7 + 6 + 4 + 0 + 91 + 544 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (9127640915443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 313898208 + ... + 313927284.

It is an arithmetic number, because the mean of its divisors is an integer number (124456573332).

Almost surely, 2^{9127640915442} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9127640915442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11947831039872).

9127640915442 is an abundant number, since it is smaller than the sum of its proper divisors (14768021164302).

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

9127640915442 is a wasteful number, since it uses less digits than its factorization.

9127640915442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30895 (or 30883 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 54.

The spelling of 9127640915442 in words is "nine trillion, one hundred twenty-seven billion, six hundred forty million, nine hundred fifteen thousand, four hundred forty-two".