61545277630 has 16 divisors (see below), whose sum is σ = 110812024800. Its totient is φ = 24611327712.

The previous prime is 61545277621. The next prime is 61545277649. The reversal of 61545277630 is 3677254516.

61545277630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×61545277630³ (a number of 33 digits) contains 333 as substring.

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, 809730 + ... + 882469.

It is an arithmetic number, because the mean of its divisors is an integer number (6925751550).

Almost surely, 2^61545277630 is an apocalyptic number.

61545277630 is a deficient number, since it is larger than the sum of its proper divisors (49266747170).

61545277630 is a wasteful number, since it uses less digits than its factorization.

61545277630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695843.

The product of its (nonzero) digits is 1058400, while the sum is 46.

The spelling of 61545277630 in words is "sixty-one billion, five hundred forty-five million, two hundred seventy-seven thousand, six hundred thirty".