36901641521 has 4 divisors (see below), whose sum is σ = 38843833200. Its totient is φ = 34959449844.

The previous prime is 36901641503. The next prime is 36901641533. The reversal of 36901641521 is 12514610963.

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: 12514610963 = 79 ⋅158412797.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36901641521 is a prime.

It is a super-2 number, since 2×36901641521² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36901601521) 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, 971095811 + ... + 971095848.

It is an arithmetic number, because the mean of its divisors is an integer number (9710958300).

Almost surely, 2^36901641521 is an apocalyptic number.

It is an amenable number.

36901641521 is a deficient number, since it is larger than the sum of its proper divisors (1942191679).

36901641521 is a wasteful number, since it uses less digits than its factorization.

36901641521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942191678.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 36901641521 in words is "thirty-six billion, nine hundred one million, six hundred forty-one thousand, five hundred twenty-one".