3731143642 has 4 divisors (see below), whose sum is σ = 5596715466. Its totient is φ = 1865571820.

The previous prime is 3731143627. The next prime is 3731143643. The reversal of 3731143642 is 2463411373.

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., 2887880121 + 843263521 = 53739^2 + 29039^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3731143598 and 3731143607.

It is not an unprimeable number, because it can be changed into a prime (3731143643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 932785909 + ... + 932785912.

Almost surely, 2^3731143642 is an apocalyptic number.

3731143642 is a deficient number, since it is larger than the sum of its proper divisors (1865571824).

3731143642 is a wasteful number, since it uses less digits than its factorization.

3731143642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865571823.

The product of its digits is 36288, while the sum is 34.

The square root of 3731143642 is about 61083.0880195165. The cubic root of 3731143642 is about 1551.0078276648.

The spelling of 3731143642 in words is "three billion, seven hundred thirty-one million, one hundred forty-three thousand, six hundred forty-two".