42145401406 has 4 divisors (see below), whose sum is σ = 63218102112. Its totient is φ = 21072700702.

The previous prime is 42145401373. The next prime is 42145401427. The reversal of 42145401406 is 60410454124.

42145401406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536350350 + ... + 10536350353.

It is an arithmetic number, because the mean of its divisors is an integer number (15804525528).

Almost surely, 2^42145401406 is an apocalyptic number.

42145401406 is a deficient number, since it is larger than the sum of its proper divisors (21072700706).

42145401406 is a wasteful number, since it uses less digits than its factorization.

42145401406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072700705.

The product of its (nonzero) digits is 15360, while the sum is 31.

The spelling of 42145401406 in words is "forty-two billion, one hundred forty-five million, four hundred one thousand, four hundred six".