40135425212 has 12 divisors (see below), whose sum is σ = 70243638696. Its totient is φ = 20065814160.

The previous prime is 40135425179. The next prime is 40135425217. The reversal of 40135425212 is 21252453104.

40135425212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×40135425212² (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 (40135425217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 426503 + ... + 512030.

It is an arithmetic number, because the mean of its divisors is an integer number (5853636558).

Almost surely, 2^40135425212 is an apocalyptic number.

It is an amenable number.

40135425212 is a deficient number, since it is larger than the sum of its proper divisors (30108213484).

40135425212 is a wasteful number, since it uses less digits than its factorization.

40135425212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949228 (or 949226 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 40135425212 its reverse (21252453104), we get a palindrome (61387878316).

The spelling of 40135425212 in words is "forty billion, one hundred thirty-five million, four hundred twenty-five thousand, two hundred twelve".