42154010938 has 16 divisors (see below), whose sum is σ = 68103795816. Its totient is φ = 19453167360.

The previous prime is 42154010929. The next prime is 42154010939. The reversal of 42154010938 is 83901045124.

It can be written as a sum of positive squares in 4 ways, for example, as 20446998049 + 21707012889 = 142993^2 + 147333^2 .

It is a super-2 number, since 2×42154010938² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42154010897 and 42154010906.

It is not an unprimeable number, because it can be changed into a prime (42154010939) 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, 106398 + ... + 309238.

Almost surely, 2^42154010938 is an apocalyptic number.

42154010938 is a deficient number, since it is larger than the sum of its proper divisors (25949784878).

42154010938 is a wasteful number, since it uses less digits than its factorization.

42154010938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210849.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 42154010938 in words is "forty-two billion, one hundred fifty-four million, ten thousand, nine hundred thirty-eight".