40533978258 has 16 divisors (see below), whose sum is σ = 90075507360. Its totient is φ = 13511326068.

The previous prime is 40533978257. The next prime is 40533978283. The reversal of 40533978258 is 85287933504.

It is a super-3 number, since 3×40533978258³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 750629227 = 40533978258 / (4 + 0 + 5 + 3 + 3 + 9 + 7 + 8 + 2 + 5 + 8).

It is not an unprimeable number, because it can be changed into a prime (40533978257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375314560 + ... + 375314667.

It is an arithmetic number, because the mean of its divisors is an integer number (5629719210).

Almost surely, 2^40533978258 is an apocalyptic number.

40533978258 is an abundant number, since it is smaller than the sum of its proper divisors (49541529102).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40533978258 is a wasteful number, since it uses less digits than its factorization.

40533978258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750629238 (or 750629232 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 40533978258 in words is "forty billion, five hundred thirty-three million, nine hundred seventy-eight thousand, two hundred fifty-eight".