78125751473 has 16 divisors (see below), whose sum is σ = 97462055040. Its totient is φ = 60840633600.

The previous prime is 78125751467. The next prime is 78125751481. The reversal of 78125751473 is 37415752187.

It is a cyclic number.

It is not a de Polignac number, because 78125751473 - 2¹⁰ = 78125750449 is a prime.

It is a super-2 number, since 2×78125751473² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78125751433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175448 + ... + 432473.

It is an arithmetic number, because the mean of its divisors is an integer number (6091378440).

Almost surely, 2^78125751473 is an apocalyptic number.

It is an amenable number.

78125751473 is a deficient number, since it is larger than the sum of its proper divisors (19336303567).

78125751473 is a wasteful number, since it uses less digits than its factorization.

78125751473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609608.

The product of its digits is 1646400, while the sum is 50.

The spelling of 78125751473 in words is "seventy-eight billion, one hundred twenty-five million, seven hundred fifty-one thousand, four hundred seventy-three".