42499999999 has 8 divisors (see below), whose sum is σ = 43716068352. Its totient is φ = 41294281560.

The previous prime is 42499999991. The next prime is 42500000003. The reversal of 42499999999 is 99999999424.

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

It is a cyclic number.

It is not a de Polignac number, because 42499999999 - 2³ = 42499999991 is a prime.

It is a Duffinian number.

42499999999 is a modest number, since divided by 999999 gives 42499 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42499999991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579149 + ... + 2595574.

It is an arithmetic number, because the mean of its divisors is an integer number (5464508544).

Almost surely, 2^42499999999 is an apocalyptic number.

42499999999 is a deficient number, since it is larger than the sum of its proper divisors (1216068353).

42499999999 is a wasteful number, since it uses less digits than its factorization.

42499999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174957.

The product of its digits is 1377495072, while the sum is 82.

The spelling of 42499999999 in words is "forty-two billion, four hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".