7631161402 has 4 divisors (see below), whose sum is σ = 11446742106. Its totient is φ = 3815580700.

The previous prime is 7631161397. The next prime is 7631161409. The reversal of 7631161402 is 2041611367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2041611367 = 73 ⋅27967279.

It can be written as a sum of positive squares in only one way, i.e., 6812686521 + 818474881 = 82539^2 + 28609^2 .

It is a super-3 number, since 3×7631161402³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7631161409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1907790349 + ... + 1907790352.

Almost surely, 2^7631161402 is an apocalyptic number.

7631161402 is a deficient number, since it is larger than the sum of its proper divisors (3815580704).

7631161402 is a wasteful number, since it uses less digits than its factorization.

7631161402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3815580703.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 7631161402 is about 87356.5189439231. The cubic root of 7631161402 is about 1968.7785983624.

Adding to 7631161402 its reverse (2041611367), we get a palindrome (9672772769).

The spelling of 7631161402 in words is "seven billion, six hundred thirty-one million, one hundred sixty-one thousand, four hundred two".