78105977306 has 16 divisors (see below), whose sum is σ = 133925673024. Its totient is φ = 33466562304.

The previous prime is 78105977297. The next prime is 78105977333. The reversal of 78105977306 is 60377950187.

It is a super-3 number, since 3×78105977306³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 553415 + ... + 680058.

It is an arithmetic number, because the mean of its divisors is an integer number (8370354564).

Almost surely, 2^78105977306 is an apocalyptic number.

78105977306 is a deficient number, since it is larger than the sum of its proper divisors (55819695718).

78105977306 is a wasteful number, since it uses less digits than its factorization.

78105977306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238005.

The product of its (nonzero) digits is 2222640, while the sum is 53.

The spelling of 78105977306 in words is "seventy-eight billion, one hundred five million, nine hundred seventy-seven thousand, three hundred six".