40635061442 has 4 divisors (see below), whose sum is σ = 60952592166. Its totient is φ = 20317530720.

The previous prime is 40635061433. The next prime is 40635061457. The reversal of 40635061442 is 24416053604.

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

It can be written as a sum of positive squares in only one way, i.e., 39045364801 + 1589696641 = 197599^2 + 39871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10158765359 + ... + 10158765362.

Almost surely, 2^40635061442 is an apocalyptic number.

40635061442 is a deficient number, since it is larger than the sum of its proper divisors (20317530724).

40635061442 is a wasteful number, since it uses less digits than its factorization.

40635061442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20317530723.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 40635061442 in words is "forty billion, six hundred thirty-five million, sixty-one thousand, four hundred forty-two".