61263140352 has 80 divisors (see below), whose sum is σ = 171798855360. Its totient is φ = 19346245632.

The previous prime is 61263140347. The next prime is 61263140357. The reversal of 61263140352 is 25304136216.

It is an interprime number because it is at equal distance from previous prime (61263140347) and next prime (61263140357).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263140357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020418 + ... + 1078785.

It is an arithmetic number, because the mean of its divisors is an integer number (2147485692).

Almost surely, 2^61263140352 is an apocalyptic number.

It is an amenable number.

61263140352 is an abundant number, since it is smaller than the sum of its proper divisors (110535715008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61263140352 is a wasteful number, since it uses less digits than its factorization.

61263140352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099243 (or 2099227 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 61263140352 its reverse (25304136216), we get a palindrome (86567276568).

The spelling of 61263140352 in words is "sixty-one billion, two hundred sixty-three million, one hundred forty thousand, three hundred fifty-two".