61315154442430 has 64 divisors (see below), whose sum is σ = 126400768883712. Its totient is φ = 20977887824640.

The previous prime is 61315154442419. The next prime is 61315154442439. The reversal of 61315154442430 is 3424445151316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61315154442439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 680425437 + ... + 680515543.

It is an arithmetic number, because the mean of its divisors is an integer number (1975012013808).

Almost surely, 2^{61315154442430} is an apocalyptic number.

61315154442430 is an abundant number, since it is smaller than the sum of its proper divisors (65085614441282).

61315154442430 is a wasteful number, since it uses less digits than its factorization.

61315154442430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110569.

The product of its (nonzero) digits is 691200, while the sum is 43.

Adding to 61315154442430 its reverse (3424445151316), we get a palindrome (64739599593746).

The spelling of 61315154442430 in words is "sixty-one trillion, three hundred fifteen billion, one hundred fifty-four million, four hundred forty-two thousand, four hundred thirty".