1001611506979 has 2 divisors, whose sum is σ = 1001611506980. Its totient is φ = 1001611506978.

The previous prime is 1001611506967. The next prime is 1001611507019. The reversal of 1001611506979 is 9796051161001.

1001611506979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001611506979 is a prime.

It is a super-2 number, since 2×1001611506979² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1001611506179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500805753489 + 500805753490.

It is an arithmetic number, because the mean of its divisors is an integer number (500805753490).

Almost surely, 2^{1001611506979} is an apocalyptic number.

1001611506979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001611506979 is an equidigital number, since it uses as much as digits as its factorization.

1001611506979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 46.

The spelling of 1001611506979 in words is "one trillion, one billion, six hundred eleven million, five hundred six thousand, nine hundred seventy-nine".