7978968429 has 8 divisors (see below), whose sum is σ = 10679076672. Its totient is φ = 5299086240.

The previous prime is 7978968409. The next prime is 7978968541. The reversal of 7978968429 is 9248698797.

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

It is not a de Polignac number, because 7978968429 - 2¹² = 7978964333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7978968409) 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, 5055592 + ... + 5057169.

It is an arithmetic number, because the mean of its divisors is an integer number (1334884584).

Almost surely, 2^7978968429 is an apocalyptic number.

It is an amenable number.

7978968429 is a deficient number, since it is larger than the sum of its proper divisors (2700108243).

7978968429 is a wasteful number, since it uses less digits than its factorization.

7978968429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10113027.

The product of its digits is 109734912, while the sum is 69.

The square root of 7978968429 is about 89325.0716708361. The cubic root of 7978968429 is about 1998.2458309787.

The spelling of 7978968429 in words is "seven billion, nine hundred seventy-eight million, nine hundred sixty-eight thousand, four hundred twenty-nine".