415858821061 has 4 divisors (see below), whose sum is σ = 433939639392. Its totient is φ = 397778002732.

The previous prime is 415858821043. The next prime is 415858821071. The reversal of 415858821061 is 160128858514.

It is a happy number.

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: 160128858514 = 2 ⋅80064429257.

It is a cyclic number.

It is not a de Polignac number, because 415858821061 - 2⁵ = 415858821029 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 415858820996 and 415858821014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (415858821071) 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, 9040409131 + ... + 9040409176.

It is an arithmetic number, because the mean of its divisors is an integer number (108484909848).

Almost surely, 2^415858821061 is an apocalyptic number.

It is an amenable number.

415858821061 is a deficient number, since it is larger than the sum of its proper divisors (18080818331).

415858821061 is a wasteful number, since it uses less digits than its factorization.

415858821061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18080818330.

The product of its (nonzero) digits is 614400, while the sum is 49.

The spelling of 415858821061 in words is "four hundred fifteen billion, eight hundred fifty-eight million, eight hundred twenty-one thousand, sixty-one".