61408611 has 40 divisors (see below), whose sum is σ = 102575088. Its totient is φ = 36309600.

The previous prime is 61408591. The next prime is 61408619. The reversal of 61408611 is 11680416.

61408611 is a `hidden beast` number, since 6 + 1 + 40 + 8 + 611 = 666.

It is not a de Polignac number, because 61408611 - 2⁵ = 61408579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (61408619) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1497751 + ... + 1497791.

Almost surely, 2^61408611 is an apocalyptic number.

61408611 is a deficient number, since it is larger than the sum of its proper divisors (41166477).

61408611 is an frugal number, since it uses more digits than its factorization.

61408611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 61408611 is about 7836.3646546087. The cubic root of 61408611 is about 394.5267225895.

The spelling of 61408611 in words is "sixty-one million, four hundred eight thousand, six hundred eleven".