2516626945 has 16 divisors (see below), whose sum is σ = 3535555968. Its totient is φ = 1683596160.

The previous prime is 2516626933. The next prime is 2516626961. The reversal of 2516626945 is 5496266152.

It is not a de Polignac number, because 2516626945 - 2²¹ = 2514529793 is a prime.

It is a super-2 number, since 2×2516626945² = 12666822360600066050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2516626895 and 2516626904.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875439 + ... + 878308.

It is an arithmetic number, because the mean of its divisors is an integer number (220972248).

Almost surely, 2^2516626945 is an apocalyptic number.

It is an amenable number.

2516626945 is a deficient number, since it is larger than the sum of its proper divisors (1018929023).

2516626945 is a wasteful number, since it uses less digits than its factorization.

2516626945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753800.

The product of its digits is 777600, while the sum is 46.

The square root of 2516626945 is about 50165.9939102177. The cubic root of 2516626945 is about 1360.2109939726.

The spelling of 2516626945 in words is "two billion, five hundred sixteen million, six hundred twenty-six thousand, nine hundred forty-five".