42166758380 has 24 divisors (see below), whose sum is σ = 90051045840. Its totient is φ = 16580826560.

The previous prime is 42166758373. The next prime is 42166758419. The reversal of 42166758380 is 8385766124.

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, 17866091 + ... + 17868450.

It is an arithmetic number, because the mean of its divisors is an integer number (3752126910).

Almost surely, 2^42166758380 is an apocalyptic number.

It is an amenable number.

42166758380 is an abundant number, since it is smaller than the sum of its proper divisors (47884287460).

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

42166758380 is a wasteful number, since it uses less digits than its factorization.

42166758380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35734609 (or 35734607 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 42166758380 in words is "forty-two billion, one hundred sixty-six million, seven hundred fifty-eight thousand, three hundred eighty".