61400534006 has 32 divisors (see below), whose sum is σ = 111468897792. Its totient is φ = 24762337920.

The previous prime is 61400533993. The next prime is 61400534009. The reversal of 61400534006 is 60043500416.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 61400534006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61400534009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616525 + ... + 1654071.

It is an arithmetic number, because the mean of its divisors is an integer number (3483403056).

Almost surely, 2^61400534006 is an apocalyptic number.

61400534006 is a deficient number, since it is larger than the sum of its proper divisors (50068363786).

61400534006 is a wasteful number, since it uses less digits than its factorization.

61400534006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44444.

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 61400534006 in words is "sixty-one billion, four hundred million, five hundred thirty-four thousand, six".