71642311654 has 8 divisors (see below), whose sum is σ = 108414471960. Its totient is φ = 35504154336.

The previous prime is 71642311651. The next prime is 71642311661. The reversal of 71642311654 is 45611324617.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71642311651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158500464 + ... + 158500915.

It is an arithmetic number, because the mean of its divisors is an integer number (13551808995).

Almost surely, 2^71642311654 is an apocalyptic number.

71642311654 is a deficient number, since it is larger than the sum of its proper divisors (36772160306).

71642311654 is a wasteful number, since it uses less digits than its factorization.

71642311654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317001494.

The product of its digits is 120960, while the sum is 40.

The spelling of 71642311654 in words is "seventy-one billion, six hundred forty-two million, three hundred eleven thousand, six hundred fifty-four".