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72791585014987 is a prime number
BaseRepresentation
bin10000100011010000011100…
…100100010100010011001011
3100112201210210201022211102201
4100203100130210110103023
534020104131230434422
6414451554214341031
721222006222530116
oct2043203444242313
9315653721284381
1072791585014987
1121214813082933
1281b75b665a777
1331802a8a17467
1413d91bac2b57d
15863722146727
hex42341c9144cb

72791585014987 has 2 divisors, whose sum is σ = 72791585014988. Its totient is φ = 72791585014986.

The previous prime is 72791585014937. The next prime is 72791585014991. The reversal of 72791585014987 is 78941058519727.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72791585014987 - 215 = 72791584982219 is a prime.

It is a super-2 number, since 2×727915850149872 (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (72791585014927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36395792507493 + 36395792507494.

It is an arithmetic number, because the mean of its divisors is an integer number (36395792507494).

Almost surely, 272791585014987 is an apocalyptic number.

72791585014987 is a deficient number, since it is larger than the sum of its proper divisors (1).

72791585014987 is an equidigital number, since it uses as much as digits as its factorization.

72791585014987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 355622400, while the sum is 73.

The spelling of 72791585014987 in words is "seventy-two trillion, seven hundred ninety-one billion, five hundred eighty-five million, fourteen thousand, nine hundred eighty-seven".