61345545467 has 4 divisors (see below), whose sum is σ = 64012743120. Its totient is φ = 58678347816.

The previous prime is 61345545433. The next prime is 61345545479. The reversal of 61345545467 is 76454554316.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 61345545467 - 2⁶ = 61345545403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61345545407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1333598792 + ... + 1333598837.

It is an arithmetic number, because the mean of its divisors is an integer number (16003185780).

Almost surely, 2^61345545467 is an apocalyptic number.

61345545467 is a deficient number, since it is larger than the sum of its proper divisors (2667197653).

61345545467 is a wasteful number, since it uses less digits than its factorization.

61345545467 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667197652.

The product of its digits is 6048000, while the sum is 50.

The spelling of 61345545467 in words is "sixty-one billion, three hundred forty-five million, five hundred forty-five thousand, four hundred sixty-seven".