3612985957 has 4 divisors (see below), whose sum is σ = 4129126816. Its totient is φ = 3096845100.

The previous prime is 3612985939. The next prime is 3612985973. The reversal of 3612985957 is 7595892163.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7595892163 = 23 ⋅330256181.

It is a cyclic number.

It is not a de Polignac number, because 3612985957 - 2⁷ = 3612985829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3612985898 and 3612985907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612986957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258070419 + ... + 258070432.

It is an arithmetic number, because the mean of its divisors is an integer number (1032281704).

Almost surely, 2^3612985957 is an apocalyptic number.

It is an amenable number.

3612985957 is a deficient number, since it is larger than the sum of its proper divisors (516140859).

3612985957 is an equidigital number, since it uses as much as digits as its factorization.

3612985957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516140858.

The product of its digits is 4082400, while the sum is 55.

The square root of 3612985957 is about 60108.1188942060. The cubic root of 3612985957 is about 1534.4594795701.

The spelling of 3612985957 in words is "three billion, six hundred twelve million, nine hundred eighty-five thousand, nine hundred fifty-seven".