61803708427 has 2 divisors, whose sum is σ = 61803708428. Its totient is φ = 61803708426.

The previous prime is 61803708397. The next prime is 61803708451. The reversal of 61803708427 is 72480730816.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61803708427 - 2²⁷ = 61669490699 is a prime.

It is not a weakly prime, because it can be changed into another prime (61803708467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30901854213 + 30901854214.

It is an arithmetic number, because the mean of its divisors is an integer number (30901854214).

Almost surely, 2^61803708427 is an apocalyptic number.

61803708427 is a deficient number, since it is larger than the sum of its proper divisors (1).

61803708427 is an equidigital number, since it uses as much as digits as its factorization.

61803708427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 61803708427 in words is "sixty-one billion, eight hundred three million, seven hundred eight thousand, four hundred twenty-seven".