61368242379025 has 24 divisors (see below), whose sum is σ = 76183057865088. Its totient is φ = 49038835560000.

The previous prime is 61368242378977. The next prime is 61368242379043. The reversal of 61368242379025 is 52097324286316.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-61368242379025 is a prime.

It is a super-2 number, since 2×61368242379025² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348811330 + ... + 348987220.

It is an arithmetic number, because the mean of its divisors is an integer number (3174294077712).

It is a 1-persistent number, because it is pandigital, but 2⋅61368242379025 = 122736484758050 is not.

Almost surely, 2^{61368242379025} is an apocalyptic number.

It is an amenable number.

61368242379025 is a deficient number, since it is larger than the sum of its proper divisors (14814815486063).

61368242379025 is a wasteful number, since it uses less digits than its factorization.

61368242379025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191673 (or 191668 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 58.

The spelling of 61368242379025 in words is "sixty-one trillion, three hundred sixty-eight billion, two hundred forty-two million, three hundred seventy-nine thousand, twenty-five".