1501961933491 has 2 divisors, whose sum is σ = 1501961933492. Its totient is φ = 1501961933490.

The previous prime is 1501961933401. The next prime is 1501961933581. The reversal of 1501961933491 is 1943391691051.

It is a balanced prime because it is at equal distance from previous prime (1501961933401) and next prime (1501961933581).

It is a cyclic number.

It is not a de Polignac number, because 1501961933491 - 2³⁷ = 1364522980019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1501961933401) 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 as a sum of consecutive naturals, namely, 750980966745 + 750980966746.

It is an arithmetic number, because the mean of its divisors is an integer number (750980966746).

Almost surely, 2^{1501961933491} is an apocalyptic number.

1501961933491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1501961933491 is an equidigital number, since it uses as much as digits as its factorization.

1501961933491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 52.

The spelling of 1501961933491 in words is "one trillion, five hundred one billion, nine hundred sixty-one million, nine hundred thirty-three thousand, four hundred ninety-one".