1970915699 has 2 divisors, whose sum is σ = 1970915700. Its totient is φ = 1970915698.

The previous prime is 1970915693. The next prime is 1970915729. The reversal of 1970915699 is 9965190791.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1970915699 is a prime.

It is not a weakly prime, because it can be changed into another prime (1970915693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985457849 + 985457850.

It is an arithmetic number, because the mean of its divisors is an integer number (985457850).

Almost surely, 2^1970915699 is an apocalyptic number.

1970915699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970915699 is an equidigital number, since it uses as much as digits as its factorization.

1970915699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 56.

The square root of 1970915699 is about 44394.9963284152. The cubic root of 1970915699 is about 1253.7838833438.

The spelling of 1970915699 in words is "one billion, nine hundred seventy million, nine hundred fifteen thousand, six hundred ninety-nine".