3537994805 has 4 divisors (see below), whose sum is σ = 4245593772. Its totient is φ = 2830395840.

The previous prime is 3537994783. The next prime is 3537994813. The reversal of 3537994805 is 5084997353.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5084997353 = 137 ⋅37116769.

It can be written as a sum of positive squares in 2 ways, for example, as 2094526756 + 1443468049 = 45766^2 + 37993^2 .

It is not a de Polignac number, because 3537994805 - 2⁶ = 3537994741 is a prime.

It is a Duffinian number.

It is a congruent 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, 353799476 + ... + 353799485.

It is an arithmetic number, because the mean of its divisors is an integer number (1061398443).

Almost surely, 2^3537994805 is an apocalyptic number.

It is an amenable number.

3537994805 is a deficient number, since it is larger than the sum of its proper divisors (707598967).

3537994805 is an equidigital number, since it uses as much as digits as its factorization.

3537994805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707598966.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The square root of 3537994805 is about 59481.0457624948. The cubic root of 3537994805 is about 1523.7687533906.

The spelling of 3537994805 in words is "three billion, five hundred thirty-seven million, nine hundred ninety-four thousand, eight hundred five".