85706400001 has 4 divisors (see below), whose sum is σ = 85711614912. Its totient is φ = 85701185092.

The previous prime is 85706399969. The next prime is 85706400023. The reversal of 85706400001 is 10000460758.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10000460758 = 2 ⋅5000230379.

It is a cyclic number.

It is not a de Polignac number, because 85706400001 - 2⁵ = 85706399969 is a prime.

It is a super-2 number, since 2×85706400001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85706400061) 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, 2582725 + ... + 2615698.

It is an arithmetic number, because the mean of its divisors is an integer number (21427903728).

Almost surely, 2^85706400001 is an apocalyptic number.

It is an amenable number.

85706400001 is a deficient number, since it is larger than the sum of its proper divisors (5214911).

85706400001 is a wasteful number, since it uses less digits than its factorization.

85706400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5214910.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 85706400001 its reverse (10000460758), we get a palindrome (95706860759).

The spelling of 85706400001 in words is "eighty-five billion, seven hundred six million, four hundred thousand, one".