42890265615 has 8 divisors (see below), whose sum is σ = 68624425008. Its totient is φ = 22874808320.

The previous prime is 42890265577. The next prime is 42890265631. The reversal of 42890265615 is 51656209824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42890265615 - 2¹⁴ = 42890249231 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1429675506 + ... + 1429675535.

It is an arithmetic number, because the mean of its divisors is an integer number (8578053126).

Almost surely, 2^42890265615 is an apocalyptic number.

42890265615 is a deficient number, since it is larger than the sum of its proper divisors (25734159393).

42890265615 is a wasteful number, since it uses less digits than its factorization.

42890265615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859351049.

The product of its (nonzero) digits is 1036800, while the sum is 48.

It can be divided in two parts, 42890 and 265615, that added together give a triangular number (308505 = T₇₈₅).

The spelling of 42890265615 in words is "forty-two billion, eight hundred ninety million, two hundred sixty-five thousand, six hundred fifteen".