61120310537 has 16 divisors (see below), whose sum is σ = 72263067072. Its totient is φ = 50963065920.

The previous prime is 61120310507. The next prime is 61120310539. The reversal of 61120310537 is 73501302116.

It is not a de Polignac number, because 61120310537 - 2¹⁰ = 61120309513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61120310539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1338743 + ... + 1383644.

It is an arithmetic number, because the mean of its divisors is an integer number (4516441692).

Almost surely, 2^61120310537 is an apocalyptic number.

It is an amenable number.

61120310537 is a deficient number, since it is larger than the sum of its proper divisors (11142756535).

61120310537 is a wasteful number, since it uses less digits than its factorization.

61120310537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722568.

The product of its (nonzero) digits is 3780, while the sum is 29.

The spelling of 61120310537 in words is "sixty-one billion, one hundred twenty million, three hundred ten thousand, five hundred thirty-seven".