3985506272554 has 4 divisors (see below), whose sum is σ = 5978259408834. Its totient is φ = 1992753136276.

The previous prime is 3985506272519. The next prime is 3985506272563. The reversal of 3985506272554 is 4552726055893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2852501434225 + 1133004838329 = 1688935^2 + 1064427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3985506272492 and 3985506272501.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996376568137 + ... + 996376568140.

Almost surely, 2^{3985506272554} is an apocalyptic number.

3985506272554 is a deficient number, since it is larger than the sum of its proper divisors (1992753136280).

3985506272554 is a wasteful number, since it uses less digits than its factorization.

3985506272554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992753136279.

The product of its (nonzero) digits is 90720000, while the sum is 61.

The spelling of 3985506272554 in words is "three trillion, nine hundred eighty-five billion, five hundred six million, two hundred seventy-two thousand, five hundred fifty-four".