7825378265 has 8 divisors (see below), whose sum is σ = 9391181568. Its totient is φ = 6259817520.

The previous prime is 7825378261. The next prime is 7825378271. The reversal of 7825378265 is 5628735287.

It is a happy number.

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

It is not a de Polignac number, because 7825378265 - 2² = 7825378261 is a prime.

It is a super-2 number, since 2×7825378265² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7825378261) 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, 20120 + ... + 126710.

It is an arithmetic number, because the mean of its divisors is an integer number (1173897696).

Almost surely, 2^7825378265 is an apocalyptic number.

It is an amenable number.

7825378265 is a deficient number, since it is larger than the sum of its proper divisors (1565803303).

7825378265 is a wasteful number, since it uses less digits than its factorization.

7825378265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121279.

The product of its digits is 5644800, while the sum is 53.

The square root of 7825378265 is about 88461.1681191245. The cubic root of 7825378265 is about 1985.3410082312.

The spelling of 7825378265 in words is "seven billion, eight hundred twenty-five million, three hundred seventy-eight thousand, two hundred sixty-five".