42061870438100 has 36 divisors (see below), whose sum is σ = 91275436386204. Its totient is φ = 16824531118080.

The previous prime is 42061870438099. The next prime is 42061870438121. The reversal of 42061870438100 is 183407816024.

It can be written as a sum of positive squares in 6 ways, for example, as 8792577091984 + 33269293346116 = 2965228^2 + 5767954^2 .

It is a super-2 number, since 2×42061870438100² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5191412 + ... + 10539188.

Almost surely, 2^{42061870438100} is an apocalyptic number.

It is an amenable number.

42061870438100 is an abundant number, since it is smaller than the sum of its proper divisors (49213565948104).

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

42061870438100 is a wasteful number, since it uses less digits than its factorization.

42061870438100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426444 (or 5426437 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 42061870438100 in words is "forty-two trillion, sixty-one billion, eight hundred seventy million, four hundred thirty-eight thousand, one hundred".