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68472165741 = 376748665363
BaseRepresentation
bin111111110001010000…
…100101010101101101
320112201221110102021120
4333301100211111231
52110212333300431
651242232051153
74642542543240
oct776120452555
9215657412246
1068472165741
1127047830631
121132b233ab9
1365c2a5b105
143457b49257
151bab419196
hexff142556d

68472165741 has 16 divisors (see below), whose sum is σ = 105895832064. Its totient is φ = 38542966704.

The previous prime is 68472165739. The next prime is 68472165757. The reversal of 68472165741 is 14756127486.

It is not a de Polignac number, because 68472165741 - 21 = 68472165739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68472165841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24331275 + ... + 24334088.

It is an arithmetic number, because the mean of its divisors is an integer number (6618489504).

Almost surely, 268472165741 is an apocalyptic number.

It is an amenable number.

68472165741 is a deficient number, since it is larger than the sum of its proper divisors (37423666323).

68472165741 is a wasteful number, since it uses less digits than its factorization.

68472165741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48665440.

The product of its digits is 2257920, while the sum is 51.

The spelling of 68472165741 in words is "sixty-eight billion, four hundred seventy-two million, one hundred sixty-five thousand, seven hundred forty-one".

Divisors: 1 3 7 21 67 201 469 1407 48665363 145996089 340657541 1021972623 3260579321 9781737963 22824055247 68472165741