61172406284 has 24 divisors (see below), whose sum is σ = 116960417616. Its totient is φ = 27763560000.

The previous prime is 61172406283. The next prime is 61172406287. The reversal of 61172406284 is 48260427116.

It is not an unprimeable number, because it can be changed into a prime (61172406283) 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, 1022567 + ... + 1080734.

It is an arithmetic number, because the mean of its divisors is an integer number (4873350734).

Almost surely, 2^61172406284 is an apocalyptic number.

It is an amenable number.

61172406284 is a deficient number, since it is larger than the sum of its proper divisors (55788011332).

61172406284 is a wasteful number, since it uses less digits than its factorization.

61172406284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2103977 (or 2103975 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 61172406284 in words is "sixty-one billion, one hundred seventy-two million, four hundred six thousand, two hundred eighty-four".