35715421985 has 4 divisors (see below), whose sum is σ = 42858506388. Its totient is φ = 28572337584.

The previous prime is 35715421927. The next prime is 35715421999. The reversal of 35715421985 is 58912451753.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58912451753 = 103 ⋅571965551.

It can be written as a sum of positive squares in 2 ways, for example, as 28181008384 + 7534413601 = 167872^2 + 86801^2 .

It is a cyclic number.

It is not a de Polignac number, because 35715421985 - 2⁶ = 35715421921 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3571542194 + ... + 3571542203.

It is an arithmetic number, because the mean of its divisors is an integer number (10714626597).

Almost surely, 2^35715421985 is an apocalyptic number.

It is an amenable number.

35715421985 is a deficient number, since it is larger than the sum of its proper divisors (7143084403).

35715421985 is an equidigital number, since it uses as much as digits as its factorization.

35715421985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143084402.

The product of its digits is 1512000, while the sum is 50.

The spelling of 35715421985 in words is "thirty-five billion, seven hundred fifteen million, four hundred twenty-one thousand, nine hundred eighty-five".