61507421257334 has 32 divisors (see below), whose sum is σ = 100149523407360. Its totient is φ = 28162244168352.

The previous prime is 61507421257301. The next prime is 61507421257351. The reversal of 61507421257334 is 43375212470516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1787294 + ... + 11234289.

It is an arithmetic number, because the mean of its divisors is an integer number (3129672606480).

Almost surely, 2^{61507421257334} is an apocalyptic number.

61507421257334 is a deficient number, since it is larger than the sum of its proper divisors (38642102150026).

61507421257334 is a wasteful number, since it uses less digits than its factorization.

61507421257334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13023044.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 61507421257334 in words is "sixty-one trillion, five hundred seven billion, four hundred twenty-one million, two hundred fifty-seven thousand, three hundred thirty-four".