2425691986 has 8 divisors (see below), whose sum is σ = 3692844720. Its totient is φ = 1194743748.

The previous prime is 2425691977. The next prime is 2425692001. The reversal of 2425691986 is 6891965242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2425691986² = 11767963221889248392, which contains 22 as substring.

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, 9050956 + ... + 9051223.

It is an arithmetic number, because the mean of its divisors is an integer number (461605590).

Almost surely, 2^2425691986 is an apocalyptic number.

2425691986 is a deficient number, since it is larger than the sum of its proper divisors (1267152734).

2425691986 is a wasteful number, since it uses less digits than its factorization.

2425691986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18102248.

The product of its digits is 1866240, while the sum is 52.

The square root of 2425691986 is about 49251.3145611363. The cubic root of 2425691986 is about 1343.6264702856.

The spelling of 2425691986 in words is "two billion, four hundred twenty-five million, six hundred ninety-one thousand, nine hundred eighty-six".