40498051919 has 16 divisors (see below), whose sum is σ = 43780184448. Its totient is φ = 37239927552.

The previous prime is 40498051907. The next prime is 40498051927. The reversal of 40498051919 is 91915089404.

It is a cyclic number.

It is not a de Polignac number, because 40498051919 - 2²⁴ = 40481274703 is a prime.

It is a super-2 number, since 2×40498051919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40498051939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9422579 + ... + 9426875.

It is an arithmetic number, because the mean of its divisors is an integer number (2736261528).

Almost surely, 2^40498051919 is an apocalyptic number.

40498051919 is a deficient number, since it is larger than the sum of its proper divisors (3282132529).

40498051919 is a wasteful number, since it uses less digits than its factorization.

40498051919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914.

The product of its (nonzero) digits is 466560, while the sum is 50.

The spelling of 40498051919 in words is "forty billion, four hundred ninety-eight million, fifty-one thousand, nine hundred nineteen".