70312491511 has 2 divisors, whose sum is σ = 70312491512. Its totient is φ = 70312491510.

The previous prime is 70312491439. The next prime is 70312491629. The reversal of 70312491511 is 11519421307.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 70312491511 - 2⁷ = 70312491383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70312491811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35156245755 + 35156245756.

It is an arithmetic number, because the mean of its divisors is an integer number (35156245756).

Almost surely, 2^70312491511 is an apocalyptic number.

70312491511 is a deficient number, since it is larger than the sum of its proper divisors (1).

70312491511 is an equidigital number, since it uses as much as digits as its factorization.

70312491511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 70312491511 in words is "seventy billion, three hundred twelve million, four hundred ninety-one thousand, five hundred eleven".