42061378560 has 88 divisors (see below), whose sum is σ = 134530739616. Its totient is φ = 11216363520.

The previous prime is 42061378559. The next prime is 42061378577. The reversal of 42061378560 is 6587316024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1353826 + ... + 1384545.

Almost surely, 2^42061378560 is an apocalyptic number.

42061378560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42061378560 is an abundant number, since it is smaller than the sum of its proper divisors (92469361056).

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

42061378560 is a wasteful number, since it uses less digits than its factorization.

42061378560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738399 (or 2738381 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 42061378560 in words is "forty-two billion, sixty-one million, three hundred seventy-eight thousand, five hundred sixty".