1198950979941 has 24 divisors (see below), whose sum is σ = 2034583483296. Its totient is φ = 670741806240.

The previous prime is 1198950979939. The next prime is 1198950979949. The reversal of 1198950979941 is 1499790598911.

1198950979941 is a `hidden beast` number, since 1 + 1 + 9 + 8 + 9 + 509 + 79 + 9 + 41 = 666.

It is not a de Polignac number, because 1198950979941 - 2¹ = 1198950979939 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1198950979941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1198950979949) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465791635 + ... + 465794208.

It is an arithmetic number, because the mean of its divisors is an integer number (84774311804).

Almost surely, 2^{1198950979941} is an apocalyptic number.

1198950979941 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1198950979941 is a deficient number, since it is larger than the sum of its proper divisors (835632503355).

1198950979941 is a wasteful number, since it uses less digits than its factorization.

1198950979941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931585873 (or 931585870 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 72.

The spelling of 1198950979941 in words is "one trillion, one hundred ninety-eight billion, nine hundred fifty million, nine hundred seventy-nine thousand, nine hundred forty-one".