78291045002 has 8 divisors (see below), whose sum is σ = 117573283200. Its totient is φ = 39099950604.

The previous prime is 78291044983. The next prime is 78291045113. The reversal of 78291045002 is 20054019287.

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

It is a super-2 number, since 2×78291045002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22783802 + ... + 22787237.

It is an arithmetic number, because the mean of its divisors is an integer number (14696660400).

Almost surely, 2^78291045002 is an apocalyptic number.

78291045002 is a deficient number, since it is larger than the sum of its proper divisors (39282238198).

78291045002 is a wasteful number, since it uses less digits than its factorization.

78291045002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45571900.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 78291045002 in words is "seventy-eight billion, two hundred ninety-one million, forty-five thousand, two".