42767486621 has 4 divisors (see below), whose sum is σ = 42790395552. Its totient is φ = 42744577692.

The previous prime is 42767486617. The next prime is 42767486639. The reversal of 42767486621 is 12668476724.

42767486621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42767486621 - 2² = 42767486617 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 (42767486611) 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, 11451665 + ... + 11455398.

It is an arithmetic number, because the mean of its divisors is an integer number (10697598888).

Almost surely, 2^42767486621 is an apocalyptic number.

It is an amenable number.

42767486621 is a deficient number, since it is larger than the sum of its proper divisors (22908931).

42767486621 is a wasteful number, since it uses less digits than its factorization.

42767486621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22908930.

The product of its digits is 5419008, while the sum is 53.

The spelling of 42767486621 in words is "forty-two billion, seven hundred sixty-seven million, four hundred eighty-six thousand, six hundred twenty-one".