71377540618734 has 48 divisors (see below), whose sum is σ = 176759288788992. Its totient is φ = 20391863515344.

The previous prime is 71377540618687. The next prime is 71377540618751. The reversal of 71377540618734 is 43781604577317.

71377540618734 is a `hidden beast` number, since 7 + 1 + 3 + 7 + 7 + 5 + 4 + 0 + 618 + 7 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22381534 + ... + 25371009.

It is an arithmetic number, because the mean of its divisors is an integer number (3682485183104).

Almost surely, 2^{71377540618734} is an apocalyptic number.

71377540618734 is an abundant number, since it is smaller than the sum of its proper divisors (105381748170258).

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

71377540618734 is a wasteful number, since it uses less digits than its factorization.

71377540618734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47764421 (or 47764418 counting only the distinct ones).

The product of its (nonzero) digits is 82978560, while the sum is 63.

The spelling of 71377540618734 in words is "seventy-one trillion, three hundred seventy-seven billion, five hundred forty million, six hundred eighteen thousand, seven hundred thirty-four".