7640272945 has 8 divisors (see below), whose sum is σ = 9170582400. Its totient is φ = 6110715120.

The previous prime is 7640272903. The next prime is 7640272987. The reversal of 7640272945 is 5492720467.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7640272903) and next prime (7640272987).

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

It is not a de Polignac number, because 7640272945 - 2⁷ = 7640272817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7640272895 and 7640272904.

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, 165295 + ... + 206404.

It is an arithmetic number, because the mean of its divisors is an integer number (1146322800).

Almost surely, 2^7640272945 is an apocalyptic number.

It is an amenable number.

7640272945 is a deficient number, since it is larger than the sum of its proper divisors (1530309455).

7640272945 is a wasteful number, since it uses less digits than its factorization.

7640272945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375815.

The product of its (nonzero) digits is 846720, while the sum is 46.

The square root of 7640272945 is about 87408.6548632342. The cubic root of 7640272945 is about 1969.5618551140.

The spelling of 7640272945 in words is "seven billion, six hundred forty million, two hundred seventy-two thousand, nine hundred forty-five".