36261500981 has 16 divisors (see below), whose sum is σ = 36732693888. Its totient is φ = 35793825600.

The previous prime is 36261500971. The next prime is 36261501013. The reversal of 36261500981 is 18900516263.

It is a cyclic number.

It is not a de Polignac number, because 36261500981 - 2¹⁰ = 36261499957 is a prime.

It is a super-2 number, since 2×36261500981² (a number of 22 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 (36261500971) 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, 34176191 + ... + 34177251.

It is an arithmetic number, because the mean of its divisors is an integer number (2295793368).

Almost surely, 2^36261500981 is an apocalyptic number.

It is an amenable number.

36261500981 is a deficient number, since it is larger than the sum of its proper divisors (471192907).

36261500981 is a wasteful number, since it uses less digits than its factorization.

36261500981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 36261500981 in words is "thirty-six billion, two hundred sixty-one million, five hundred thousand, nine hundred eighty-one".