61526477631851 has 2 divisors, whose sum is σ = 61526477631852. Its totient is φ = 61526477631850.

The previous prime is 61526477631833. The next prime is 61526477631889. The reversal of 61526477631851 is 15813677462516.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61526477631851 - 2³⁸ = 61251599724907 is a prime.

It is a super-2 number, since 2×61526477631851² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61526477630851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30763238815925 + 30763238815926.

It is an arithmetic number, because the mean of its divisors is an integer number (30763238815926).

Almost surely, 2^{61526477631851} is an apocalyptic number.

61526477631851 is a deficient number, since it is larger than the sum of its proper divisors (1).

61526477631851 is an equidigital number, since it uses as much as digits as its factorization.

61526477631851 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50803200, while the sum is 62.

The spelling of 61526477631851 in words is "sixty-one trillion, five hundred twenty-six billion, four hundred seventy-seven million, six hundred thirty-one thousand, eight hundred fifty-one".