615423123507403 has 2 divisors, whose sum is σ = 615423123507404. Its totient is φ = 615423123507402.

The previous prime is 615423123507341. The next prime is 615423123507539. The reversal of 615423123507403 is 304705321324516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 615423123507403 - 2²⁹ = 615422586636491 is a prime.

It is not a weakly prime, because it can be changed into another prime (615423123504403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307711561753701 + 307711561753702.

It is an arithmetic number, because the mean of its divisors is an integer number (307711561753702).

Almost surely, 2^{615423123507403} is an apocalyptic number.

615423123507403 is a deficient number, since it is larger than the sum of its proper divisors (1).

615423123507403 is an equidigital number, since it uses as much as digits as its factorization.

615423123507403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 615423123507403 in words is "six hundred fifteen trillion, four hundred twenty-three billion, one hundred twenty-three million, five hundred seven thousand, four hundred three".