40090620919 has 2 divisors, whose sum is σ = 40090620920. Its totient is φ = 40090620918.

The previous prime is 40090620847. The next prime is 40090620929. The reversal of 40090620919 is 91902609004.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40090620919 - 2¹⁵ = 40090588151 is a prime.

It is a super-2 number, since 2×40090620919² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40090620929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20045310459 + 20045310460.

It is an arithmetic number, because the mean of its divisors is an integer number (20045310460).

Almost surely, 2^40090620919 is an apocalyptic number.

40090620919 is a deficient number, since it is larger than the sum of its proper divisors (1).

40090620919 is an equidigital number, since it uses as much as digits as its factorization.

40090620919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 40090620919 in words is "forty billion, ninety million, six hundred twenty thousand, nine hundred nineteen".