61052071431 has 16 divisors (see below), whose sum is σ = 88171253856. Its totient is φ = 37353330816.

The previous prime is 61052071427. The next prime is 61052071441. The reversal of 61052071431 is 13417025016.

It is not a de Polignac number, because 61052071431 - 2² = 61052071427 is a prime.

It is a super-2 number, since 2×61052071431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61052071441) 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, 4517640 + ... + 4531133.

It is an arithmetic number, because the mean of its divisors is an integer number (5510703366).

Almost surely, 2^61052071431 is an apocalyptic number.

61052071431 is a deficient number, since it is larger than the sum of its proper divisors (27119182425).

61052071431 is a wasteful number, since it uses less digits than its factorization.

61052071431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9048962.

The product of its (nonzero) digits is 5040, while the sum is 30.

Adding to 61052071431 its reverse (13417025016), we get a palindrome (74469096447).

The spelling of 61052071431 in words is "sixty-one billion, fifty-two million, seventy-one thousand, four hundred thirty-one".