61051052647 has 16 divisors (see below), whose sum is σ = 70653818592. Its totient is φ = 52248176640.

The previous prime is 61051052641. The next prime is 61051052653. The reversal of 61051052647 is 74625015016.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (61051052641) and next prime (61051052653).

It is a cyclic number.

It is not a de Polignac number, because 61051052647 - 2⁷ = 61051052519 is a prime.

It is a super-3 number, since 3×61051052647³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61051052641) 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, 2046754 + ... + 2076367.

It is an arithmetic number, because the mean of its divisors is an integer number (4415863662).

Almost surely, 2^61051052647 is an apocalyptic number.

61051052647 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

61051052647 is a deficient number, since it is larger than the sum of its proper divisors (9602765945).

61051052647 is a wasteful number, since it uses less digits than its factorization.

61051052647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4123218.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 61051052647 in words is "sixty-one billion, fifty-one million, fifty-two thousand, six hundred forty-seven".