61454546009 has 8 divisors (see below), whose sum is σ = 64158803520. Its totient is φ = 58752981936.

The previous prime is 61454546003. The next prime is 61454546017. The reversal of 61454546009 is 90064545416.

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 61454546009 - 2²⁸ = 61186110553 is a prime.

It is a super-2 number, since 2×61454546009² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61454546003) 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, 626654 + ... + 718055.

It is an arithmetic number, because the mean of its divisors is an integer number (8019850440).

Almost surely, 2^61454546009 is an apocalyptic number.

It is an amenable number.

61454546009 is a deficient number, since it is larger than the sum of its proper divisors (2704257511).

61454546009 is a wasteful number, since it uses less digits than its factorization.

61454546009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1346719.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 61454546009 in words is "sixty-one billion, four hundred fifty-four million, five hundred forty-six thousand, nine".