61213212632 has 32 divisors (see below), whose sum is σ = 134840296080. Its totient is φ = 25683864960.

The previous prime is 61213212623. The next prime is 61213212659. The reversal of 61213212632 is 23621231216.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 61213212595 and 61213212604.

It is a congruent number.

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, 26752883 + ... + 26755170.

Almost surely, 2^61213212632 is an apocalyptic number.

It is an amenable number.

61213212632 is an abundant number, since it is smaller than the sum of its proper divisors (73627083448).

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

61213212632 is a wasteful number, since it uses less digits than its factorization.

61213212632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53508083 (or 53508079 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

Adding to 61213212632 its reverse (23621231216), we get a palindrome (84834443848).

The spelling of 61213212632 in words is "sixty-one billion, two hundred thirteen million, two hundred twelve thousand, six hundred thirty-two".