7780764097 has 8 divisors (see below), whose sum is σ = 7878852800. Its totient is φ = 7683109200.

The previous prime is 7780764091. The next prime is 7780764143. The reversal of 7780764097 is 7904670877.

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 7780764097 - 2³¹ = 5633280449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7780764091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72279 + ... + 144172.

It is an arithmetic number, because the mean of its divisors is an integer number (984856600).

Almost surely, 2^7780764097 is an apocalyptic number.

It is an amenable number.

7780764097 is a deficient number, since it is larger than the sum of its proper divisors (98088703).

7780764097 is a wasteful number, since it uses less digits than its factorization.

7780764097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216903.

The product of its (nonzero) digits is 4148928, while the sum is 55.

The square root of 7780764097 is about 88208.6395825262. The cubic root of 7780764097 is about 1981.5608629745.

The spelling of 7780764097 in words is "seven billion, seven hundred eighty million, seven hundred sixty-four thousand, ninety-seven".