61539196252 has 12 divisors (see below), whose sum is σ = 107792675200. Its totient is φ = 30741289056.

The previous prime is 61539196249. The next prime is 61539196403. The reversal of 61539196252 is 25269193516.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 61539196196 and 61539196205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7072377 + ... + 7081072.

Almost surely, 2^61539196252 is an apocalyptic number.

It is an amenable number.

61539196252 is a deficient number, since it is larger than the sum of its proper divisors (46253478948).

61539196252 is a wasteful number, since it uses less digits than its factorization.

61539196252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14154540 (or 14154538 counting only the distinct ones).

The product of its digits is 874800, while the sum is 49.

The spelling of 61539196252 in words is "sixty-one billion, five hundred thirty-nine million, one hundred ninety-six thousand, two hundred fifty-two".