61842768516 has 48 divisors (see below), whose sum is σ = 160351833600. Its totient is φ = 20611848096.

The previous prime is 61842768509. The next prime is 61842768523. The reversal of 61842768516 is 61586724816.

61842768516 is a `hidden beast` number, since 6 + 18 + 42 + 76 + 8 + 516 = 666.

It is an interprime number because it is at equal distance from previous prime (61842768509) and next prime (61842768523).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1060126 + ... + 1116938.

It is an arithmetic number, because the mean of its divisors is an integer number (3340663200).

Almost surely, 2^61842768516 is an apocalyptic number.

It is an amenable number.

61842768516 is an abundant number, since it is smaller than the sum of its proper divisors (98509065084).

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

61842768516 is a wasteful number, since it uses less digits than its factorization.

61842768516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66905 (or 66897 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 61842768516 in words is "sixty-one billion, eight hundred forty-two million, seven hundred sixty-eight thousand, five hundred sixteen".