2667500945 has 8 divisors (see below), whose sum is σ = 3201317736. Its totient is φ = 2133789696.

The previous prime is 2667500929. The next prime is 2667500987. The reversal of 2667500945 is 5490057662.

It can be written as a sum of positive squares in 4 ways, for example, as 1184942929 + 1482558016 = 34423^2 + 38504^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2667500945 - 2⁴ = 2667500929 is a prime.

It is a super-2 number, since 2×2667500945² = 14231122583151786050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2667500896 and 2667500905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48599 + ... + 87731.

It is an arithmetic number, because the mean of its divisors is an integer number (400164717).

Almost surely, 2^2667500945 is an apocalyptic number.

It is an amenable number.

2667500945 is a deficient number, since it is larger than the sum of its proper divisors (533816791).

2667500945 is a wasteful number, since it uses less digits than its factorization.

2667500945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52771.

The product of its (nonzero) digits is 453600, while the sum is 44.

The square root of 2667500945 is about 51647.8551829599. The cubic root of 2667500945 is about 1386.8671476949.

The spelling of 2667500945 in words is "two billion, six hundred sixty-seven million, five hundred thousand, nine hundred forty-five".