61263770487 has 8 divisors (see below), whose sum is σ = 85984239360. Its totient is φ = 38692907640.

The previous prime is 61263770473. The next prime is 61263770537. The reversal of 61263770487 is 78407736216.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-61263770487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263770387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537401439 + ... + 537401552.

It is an arithmetic number, because the mean of its divisors is an integer number (10748029920).

Almost surely, 2^61263770487 is an apocalyptic number.

61263770487 is a deficient number, since it is larger than the sum of its proper divisors (24720468873).

61263770487 is a wasteful number, since it uses less digits than its factorization.

61263770487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074803013.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 61263770487 in words is "sixty-one billion, two hundred sixty-three million, seven hundred seventy thousand, four hundred eighty-seven".