42553601986 has 32 divisors (see below), whose sum is σ = 77515149312. Its totient is φ = 17103367680.

The previous prime is 42553601957. The next prime is 42553602019. The reversal of 42553601986 is 68910635524.

42553601986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251266 + ... + 385021.

It is an arithmetic number, because the mean of its divisors is an integer number (2422348416).

Almost surely, 2^42553601986 is an apocalyptic number.

42553601986 is a deficient number, since it is larger than the sum of its proper divisors (34961547326).

42553601986 is a wasteful number, since it uses less digits than its factorization.

42553601986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636594.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 42553601986 in words is "forty-two billion, five hundred fifty-three million, six hundred one thousand, nine hundred eighty-six".