61964250623 has 16 divisors (see below), whose sum is σ = 72554157216. Its totient is φ = 52291261440.

The previous prime is 61964250581. The next prime is 61964250641. The reversal of 61964250623 is 32605246916.

It is not a de Polignac number, because 61964250623 - 2³² = 57669283327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61964250823) 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, 2255936 + ... + 2283237.

It is an arithmetic number, because the mean of its divisors is an integer number (4534634826).

Almost surely, 2^61964250623 is an apocalyptic number.

61964250623 is a deficient number, since it is larger than the sum of its proper divisors (10589906593).

61964250623 is a wasteful number, since it uses less digits than its factorization.

61964250623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4539274.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 61964250623 in words is "sixty-one billion, nine hundred sixty-four million, two hundred fifty thousand, six hundred twenty-three".