85621461810 has 32 divisors (see below), whose sum is σ = 209863671552. Its totient is φ = 22346593920.

The previous prime is 85621461797. The next prime is 85621461811. The reversal of 85621461810 is 1816412658.

It is a super-2 number, since 2×85621461810² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (85621461811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30360811 + ... + 30363630.

It is an arithmetic number, because the mean of its divisors is an integer number (6558239736).

Almost surely, 2^85621461810 is an apocalyptic number.

85621461810 is an abundant number, since it is smaller than the sum of its proper divisors (124242209742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85621461810 is a wasteful number, since it uses less digits than its factorization.

85621461810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60724498.

The product of its (nonzero) digits is 92160, while the sum is 42.

The spelling of 85621461810 in words is "eighty-five billion, six hundred twenty-one million, four hundred sixty-one thousand, eight hundred ten".