36428158621 has 4 divisors (see below), whose sum is σ = 37603260544. Its totient is φ = 35253056700.

The previous prime is 36428158607. The next prime is 36428158639. The reversal of 36428158621 is 12685182463.

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 36428158621 - 2⁷ = 36428158493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36428158661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587550915 + ... + 587550976.

It is an arithmetic number, because the mean of its divisors is an integer number (9400815136).

Almost surely, 2^36428158621 is an apocalyptic number.

36428158621 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

36428158621 is a deficient number, since it is larger than the sum of its proper divisors (1175101923).

36428158621 is a wasteful number, since it uses less digits than its factorization.

36428158621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1175101922.

The product of its digits is 552960, while the sum is 46.

The spelling of 36428158621 in words is "thirty-six billion, four hundred twenty-eight million, one hundred fifty-eight thousand, six hundred twenty-one".