61067507995 has 8 divisors (see below), whose sum is σ = 78918010416. Its totient is φ = 45096005856.

The previous prime is 61067507971. The next prime is 61067507999. The reversal of 61067507995 is 59970576016.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61067507995 - 2²⁷ = 60933290267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61067507999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 469749997 + ... + 469750126.

It is an arithmetic number, because the mean of its divisors is an integer number (9864751302).

Almost surely, 2^61067507995 is an apocalyptic number.

61067507995 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

61067507995 is a deficient number, since it is larger than the sum of its proper divisors (17850502421).

61067507995 is a wasteful number, since it uses less digits than its factorization.

61067507995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939500141.

The product of its (nonzero) digits is 3572100, while the sum is 55.

The spelling of 61067507995 in words is "sixty-one billion, sixty-seven million, five hundred seven thousand, nine hundred ninety-five".