49840000145 has 32 divisors (see below), whose sum is σ = 66147217920. Its totient is φ = 35820207360.

The previous prime is 49840000129. The next prime is 49840000169. The reversal of 49840000145 is 54100004894.

It is a happy number.

It is not a de Polignac number, because 49840000145 - 2⁴ = 49840000129 is a prime.

It is a super-2 number, since 2×49840000145² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 501275 + ... + 592415.

It is an arithmetic number, because the mean of its divisors is an integer number (2067100560).

Almost surely, 2^49840000145 is an apocalyptic number.

49840000145 is the 182282-nd pentagonal number.

It is an amenable number.

49840000145 is a deficient number, since it is larger than the sum of its proper divisors (16307217775).

49840000145 is a wasteful number, since it uses less digits than its factorization.

49840000145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91385.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 49840000145 in words is "forty-nine billion, eight hundred forty million, one hundred forty-five", and thus it is an aban number.