103457761987 has 2 divisors, whose sum is σ = 103457761988. Its totient is φ = 103457761986.

The previous prime is 103457761961. The next prime is 103457761997. The reversal of 103457761987 is 789167754301.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103457761987 is a prime.

It is not a weakly prime, because it can be changed into another prime (103457761937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51728880993 + 51728880994.

It is an arithmetic number, because the mean of its divisors is an integer number (51728880994).

Almost surely, 2^103457761987 is an apocalyptic number.

103457761987 is a deficient number, since it is larger than the sum of its proper divisors (1).

103457761987 is an equidigital number, since it uses as much as digits as its factorization.

103457761987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8890560, while the sum is 58.

The spelling of 103457761987 in words is "one hundred three billion, four hundred fifty-seven million, seven hundred sixty-one thousand, nine hundred eighty-seven".