78470071954 has 16 divisors (see below), whose sum is σ = 120683475360. Its totient is φ = 38243953440.

The previous prime is 78470071949. The next prime is 78470071993. The reversal of 78470071954 is 45917007487.

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, 333984 + ... + 518155.

It is an arithmetic number, because the mean of its divisors is an integer number (7542717210).

Almost surely, 2^78470071954 is an apocalyptic number.

78470071954 is a deficient number, since it is larger than the sum of its proper divisors (42213403406).

78470071954 is a wasteful number, since it uses less digits than its factorization.

78470071954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853305.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 78470071954 in words is "seventy-eight billion, four hundred seventy million, seventy-one thousand, nine hundred fifty-four".