61541000465 has 24 divisors (see below), whose sum is σ = 87188418432. Its totient is φ = 41569688160.

The previous prime is 61541000461. The next prime is 61541000473. The reversal of 61541000465 is 56400014516.

It is not a de Polignac number, because 61541000465 - 2² = 61541000461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61541000461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1858121 + ... + 1890950.

It is an arithmetic number, because the mean of its divisors is an integer number (3632850768).

Almost surely, 2^61541000465 is an apocalyptic number.

It is an amenable number.

61541000465 is a deficient number, since it is larger than the sum of its proper divisors (25647417967).

61541000465 is a wasteful number, since it uses less digits than its factorization.

61541000465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749157 (or 3749150 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 61541000465 in words is "sixty-one billion, five hundred forty-one million, four hundred sixty-five", and thus it is an aban number.