42686615490 has 32 divisors (see below), whose sum is σ = 102454148160. Its totient is φ = 11382400704.

The previous prime is 42686615471. The next prime is 42686615513. The reversal of 42686615490 is 9451668624.

It is a super-3 number, since 3×42686615490³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620956 + ... + 686264.

It is an arithmetic number, because the mean of its divisors is an integer number (3201692130).

Almost surely, 2^42686615490 is an apocalyptic number.

42686615490 is an abundant number, since it is smaller than the sum of its proper divisors (59767532670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42686615490 is a wasteful number, since it uses less digits than its factorization.

42686615490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87106.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 42686615490 in words is "forty-two billion, six hundred eighty-six million, six hundred fifteen thousand, four hundred ninety".