385520671461261 has 32 divisors (see below), whose sum is σ = 601876164814848. Its totient is φ = 214904347519680.

The previous prime is 385520671461239. The next prime is 385520671461371. The reversal of 385520671461261 is 162164176025583.

It is not a de Polignac number, because 385520671461261 - 2¹⁰ = 385520671460237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385520671469261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267117945 + ... + 268557326.

It is an arithmetic number, because the mean of its divisors is an integer number (18808630150464).

Almost surely, 2^{385520671461261} is an apocalyptic number.

It is an amenable number.

385520671461261 is a deficient number, since it is larger than the sum of its proper divisors (216355493353587).

385520671461261 is a wasteful number, since it uses less digits than its factorization.

385520671461261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535676121.

The product of its (nonzero) digits is 14515200, while the sum is 57.

The spelling of 385520671461261 in words is "three hundred eighty-five trillion, five hundred twenty billion, six hundred seventy-one million, four hundred sixty-one thousand, two hundred sixty-one".