61525035637406 has 16 divisors (see below), whose sum is σ = 104148963149040. Its totient is φ = 27001583038080.

The previous prime is 61525035637399. The next prime is 61525035637441. The reversal of 61525035637406 is 60473653052516.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48217111931 + ... + 48217113206.

It is an arithmetic number, because the mean of its divisors is an integer number (6509310196815).

Almost surely, 2^{61525035637406} is an apocalyptic number.

61525035637406 is a deficient number, since it is larger than the sum of its proper divisors (42623927511634).

61525035637406 is a wasteful number, since it uses less digits than its factorization.

61525035637406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96434225179.

The product of its (nonzero) digits is 13608000, while the sum is 53.

The spelling of 61525035637406 in words is "sixty-one trillion, five hundred twenty-five billion, thirty-five million, six hundred thirty-seven thousand, four hundred six".