78249600001 has 8 divisors (see below), whose sum is σ = 81027331200. Its totient is φ = 75477166800.

The previous prime is 78249599951. The next prime is 78249600047. The reversal of 78249600001 is 10000694287.

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 78249600001 - 2⁷ = 78249599873 is a prime.

It is a super-2 number, since 2×78249600001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78249600061) 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, 1294425 + ... + 1353526.

It is an arithmetic number, because the mean of its divisors is an integer number (10128416400).

Almost surely, 2^78249600001 is an apocalyptic number.

It is an amenable number.

78249600001 is a deficient number, since it is larger than the sum of its proper divisors (2777731199).

78249600001 is a wasteful number, since it uses less digits than its factorization.

78249600001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648999.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 78249600001 in words is "seventy-eight billion, two hundred forty-nine million, six hundred thousand, one".