78470071953 has 128 divisors (see below), whose sum is σ = 139750195200. Its totient is φ = 38013069312.

The previous prime is 78470071949. The next prime is 78470071993. The reversal of 78470071953 is 35917007487.

It is not a de Polignac number, because 78470071953 - 2² = 78470071949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78470071896 and 78470071905.

It is not an unprimeable number, because it can be changed into a prime (78470071993) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 26571525 + ... + 26574477.

It is an arithmetic number, because the mean of its divisors is an integer number (1091798400).

Almost surely, 2^78470071953 is an apocalyptic number.

It is an amenable number.

78470071953 is a deficient number, since it is larger than the sum of its proper divisors (61280123247).

78470071953 is a wasteful number, since it uses less digits than its factorization.

78470071953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151.

The product of its (nonzero) digits is 1481760, while the sum is 51.

The spelling of 78470071953 in words is "seventy-eight billion, four hundred seventy million, seventy-one thousand, nine hundred fifty-three".