611478874051 has 2 divisors, whose sum is σ = 611478874052. Its totient is φ = 611478874050.

The previous prime is 611478874037. The next prime is 611478874159. The reversal of 611478874051 is 150478874116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 611478874051 - 2⁷ = 611478873923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611478874051.

It is not a weakly prime, because it can be changed into another prime (611478874021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305739437025 + 305739437026.

It is an arithmetic number, because the mean of its divisors is an integer number (305739437026).

Almost surely, 2^611478874051 is an apocalyptic number.

611478874051 is a deficient number, since it is larger than the sum of its proper divisors (1).

611478874051 is an equidigital number, since it uses as much as digits as its factorization.

611478874051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 611478874051 in words is "six hundred eleven billion, four hundred seventy-eight million, eight hundred seventy-four thousand, fifty-one".