851416027061 has 4 divisors (see below), whose sum is σ = 878881060224. Its totient is φ = 823950993900.

The previous prime is 851416027051. The next prime is 851416027069. The reversal of 851416027061 is 160720614158.

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 851416027061 - 2⁶ = 851416026997 is a prime.

It is a super-2 number, since 2×851416027061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (851416027069) 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, 13732516535 + ... + 13732516596.

It is an arithmetic number, because the mean of its divisors is an integer number (219720265056).

Almost surely, 2^851416027061 is an apocalyptic number.

It is an amenable number.

851416027061 is a deficient number, since it is larger than the sum of its proper divisors (27465033163).

851416027061 is a wasteful number, since it uses less digits than its factorization.

851416027061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27465033162.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 851416027061 in words is "eight hundred fifty-one billion, four hundred sixteen million, twenty-seven thousand, sixty-one".