69747342840 has 768 divisors, whose sum is σ = 280713600000. Its totient is φ = 15347211264.

The previous prime is 69747342809. The next prime is 69747342857. The reversal of 69747342840 is 4824374796.

69747342840 is a `hidden beast` number, since 6 + 97 + 473 + 4 + 2 + 84 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 350489061 + ... + 350489259.

It is an arithmetic number, because the mean of its divisors is an integer number (365512500).

Almost surely, 2^69747342840 is an apocalyptic number.

69747342840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69747342840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140356800000).

69747342840 is an abundant number, since it is smaller than the sum of its proper divisors (210966257160).

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

69747342840 is a wasteful number, since it uses less digits than its factorization.

69747342840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 69747342840 in words is "sixty-nine billion, seven hundred forty-seven million, three hundred forty-two thousand, eight hundred forty".