58721842621 has 16 divisors (see below), whose sum is σ = 64789869760. Its totient is φ = 52878510720.

The previous prime is 58721842607. The next prime is 58721842667. The reversal of 58721842621 is 12624812785.

It is a 4-Lehmer number, since φ(58721842621) divides (58721842621-1)⁴.

It is a cyclic number.

It is not a de Polignac number, because 58721842621 - 2¹³ = 58721834429 is a prime.

It is a deceptive number, since it divides R_58721842620.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58721842601) 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 15 ways as a sum of consecutive naturals, for example, 388585 + ... + 518113.

It is an arithmetic number, because the mean of its divisors is an integer number (4049366860).

It is a Poulet number, since it divides 2^58721842620-1.

Almost surely, 2^58721842621 is an apocalyptic number.

58721842621 is the 129529-th nonagonal number.

It is an amenable number.

58721842621 is a deficient number, since it is larger than the sum of its proper divisors (6068027139).

58721842621 is a wasteful number, since it uses less digits than its factorization.

58721842621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130396.

The product of its digits is 430080, while the sum is 46.

The spelling of 58721842621 in words is "fifty-eight billion, seven hundred twenty-one million, eight hundred forty-two thousand, six hundred twenty-one".