981126757442 has 16 divisors (see below), whose sum is σ = 1585234264320. Its totient is φ = 452731392912.

The previous prime is 981126757423. The next prime is 981126757451. The reversal of 981126757442 is 244757621189.

It is a super-3 number, since 3×981126757442³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3889592 + ... + 4134147.

It is an arithmetic number, because the mean of its divisors is an integer number (99077141520).

Almost surely, 2^981126757442 is an apocalyptic number.

981126757442 is a deficient number, since it is larger than the sum of its proper divisors (604107506878).

981126757442 is a wasteful number, since it uses less digits than its factorization.

981126757442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028457.

The product of its digits is 6773760, while the sum is 56.

The spelling of 981126757442 in words is "nine hundred eighty-one billion, one hundred twenty-six million, seven hundred fifty-seven thousand, four hundred forty-two".