85747102061 has 4 divisors (see below), whose sum is σ = 86401660224. Its totient is φ = 85092543900.

The previous prime is 85747102057. The next prime is 85747102093. The reversal of 85747102061 is 16020174758.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85747102061 - 2² = 85747102057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85747105061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327278885 + ... + 327279146.

It is an arithmetic number, because the mean of its divisors is an integer number (21600415056).

Almost surely, 2^85747102061 is an apocalyptic number.

It is an amenable number.

85747102061 is a deficient number, since it is larger than the sum of its proper divisors (654558163).

85747102061 is a wasteful number, since it uses less digits than its factorization.

85747102061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654558162.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 85747102061 in words is "eighty-five billion, seven hundred forty-seven million, one hundred two thousand, sixty-one".