615032611247 has 2 divisors, whose sum is σ = 615032611248. Its totient is φ = 615032611246.

The previous prime is 615032611231. The next prime is 615032611307. The reversal of 615032611247 is 742116230516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 615032611247 - 2⁴ = 615032611231 is a prime.

It is a super-2 number, since 2×615032611247² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 615032611247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615032631247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307516305623 + 307516305624.

It is an arithmetic number, because the mean of its divisors is an integer number (307516305624).

Almost surely, 2^615032611247 is an apocalyptic number.

615032611247 is a deficient number, since it is larger than the sum of its proper divisors (1).

615032611247 is an equidigital number, since it uses as much as digits as its factorization.

615032611247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 615032611247 in words is "six hundred fifteen billion, thirty-two million, six hundred eleven thousand, two hundred forty-seven".