7290197878 has 8 divisors (see below), whose sum is σ = 10991956968. Its totient is φ = 3626212224.

The previous prime is 7290197867. The next prime is 7290197879. The reversal of 7290197878 is 8787910927.

7290197878 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7290197879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9442876 + ... + 9443647.

It is an arithmetic number, because the mean of its divisors is an integer number (1373994621).

Almost surely, 2^7290197878 is an apocalyptic number.

7290197878 is a deficient number, since it is larger than the sum of its proper divisors (3701759090).

7290197878 is a wasteful number, since it uses less digits than its factorization.

7290197878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18886718.

The product of its (nonzero) digits is 3556224, while the sum is 58.

The square root of 7290197878 is about 85382.6556040511. The cubic root of 7290197878 is about 1939.0087647065.

The spelling of 7290197878 in words is "seven billion, two hundred ninety million, one hundred ninety-seven thousand, eight hundred seventy-eight".