9861036346572 has 24 divisors (see below), whose sum is σ = 23009144610816. Its totient is φ = 3287003572368.

The previous prime is 9861036346549. The next prime is 9861036346607. The reversal of 9861036346572 is 2756436301689.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5224693 + ... + 6857075.

It is an arithmetic number, because the mean of its divisors is an integer number (958714358784).

It is a 1-persistent number, because it is pandigital, but 2⋅9861036346572 = 19722072693144 is not.

Almost surely, 2^{9861036346572} is an apocalyptic number.

It is an amenable number.

9861036346572 is an abundant number, since it is smaller than the sum of its proper divisors (13148108264244).

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

9861036346572 is a wasteful number, since it uses less digits than its factorization.

9861036346572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135797 (or 2135795 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 60.

The spelling of 9861036346572 in words is "nine trillion, eight hundred sixty-one billion, thirty-six million, three hundred forty-six thousand, five hundred seventy-two".