61287338351 has 2 divisors, whose sum is σ = 61287338352. Its totient is φ = 61287338350.

The previous prime is 61287338327. The next prime is 61287338389. The reversal of 61287338351 is 15383378216.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61287338351 is a prime.

It is a super-2 number, since 2×61287338351² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61287338296 and 61287338305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61287338251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30643669175 + 30643669176.

It is an arithmetic number, because the mean of its divisors is an integer number (30643669176).

Almost surely, 2^61287338351 is an apocalyptic number.

61287338351 is a deficient number, since it is larger than the sum of its proper divisors (1).

61287338351 is an equidigital number, since it uses as much as digits as its factorization.

61287338351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 47.

The spelling of 61287338351 in words is "sixty-one billion, two hundred eighty-seven million, three hundred thirty-eight thousand, three hundred fifty-one".