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40401145879 is a prime number
BaseRepresentation
bin100101101000000110…
…001001000000010111
310212021121212212012021
4211220012021000113
51130220143132004
630320544434011
72630115034213
oct455006110027
9125247785167
1040401145879
1116152436966
1279b6318907
133a6b2055a3
141d5398d943
1510b6d24d54
hex968189017

40401145879 has 2 divisors, whose sum is σ = 40401145880. Its totient is φ = 40401145878.

The previous prime is 40401145861. The next prime is 40401145913. The reversal of 40401145879 is 97854110404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40401145879 - 225 = 40367591447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40401145979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200572939 + 20200572940.

It is an arithmetic number, because the mean of its divisors is an integer number (20200572940).

Almost surely, 240401145879 is an apocalyptic number.

40401145879 is a deficient number, since it is larger than the sum of its proper divisors (1).

40401145879 is an equidigital number, since it uses as much as digits as its factorization.

40401145879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 40401145879 in words is "forty billion, four hundred one million, one hundred forty-five thousand, eight hundred seventy-nine".