40202420419939 has 2 divisors, whose sum is σ = 40202420419940. Its totient is φ = 40202420419938.

The previous prime is 40202420419927. The next prime is 40202420420027. The reversal of 40202420419939 is 93991402420204.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40202420419939 - 2²⁹ = 40201883549027 is a prime.

It is a super-2 number, since 2×40202420419939² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40202420419892 and 40202420419901.

It is not a weakly prime, because it can be changed into another prime (40202420459939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20101210209969 + 20101210209970.

It is an arithmetic number, because the mean of its divisors is an integer number (20101210209970).

Almost surely, 2^{40202420419939} is an apocalyptic number.

40202420419939 is a deficient number, since it is larger than the sum of its proper divisors (1).

40202420419939 is an equidigital number, since it uses as much as digits as its factorization.

40202420419939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The spelling of 40202420419939 in words is "forty trillion, two hundred two billion, four hundred twenty million, four hundred nineteen thousand, nine hundred thirty-nine".