478026178517956 has 6 divisors (see below), whose sum is σ = 836545812406430. Its totient is φ = 239013089258976.

The previous prime is 478026178517933. The next prime is 478026178517977. The reversal of 478026178517956 is 659715871620874.

It can be written as a sum of positive squares in only one way, i.e., 285903459342400 + 192122719175556 = 16908680^2 + 13860834^2 .

It is a super-2 number, since 2×478026178517956² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59753272314741 + ... + 59753272314748.

Almost surely, 2^{478026178517956} is an apocalyptic number.

It is an amenable number.

478026178517956 is a deficient number, since it is larger than the sum of its proper divisors (358519633888474).

478026178517956 is a wasteful number, since it uses less digits than its factorization.

478026178517956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119506544629493 (or 119506544629491 counting only the distinct ones).

The product of its (nonzero) digits is 1422489600, while the sum is 76.

The spelling of 478026178517956 in words is "four hundred seventy-eight trillion, twenty-six billion, one hundred seventy-eight million, five hundred seventeen thousand, nine hundred fifty-six".